Moeller Polarimeter Raw Results Archives 2009

Run type: 1 - measurement in point, 2 - transverse scan, 3 - longitudinal scan

Beam Polarization: Raw Results 2009

E-06-010: Transversity experiment

• 13 January 2009 10:00 - 16:30. E.Chudakov, O.Glamazdin

  The beam energy is 5904MeV(accel), 583.5MeV(linac), 65.6437MeV(injector).
  Injector angle is 30^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=80, Slit=18. Fast raster was ON. Tuning took 1h 10m.
  There was no energy lock.

  SPIN DANCE

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760. The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Wien Filter	Polarization %	Chi2	Comments
  13055-13058	5	1	0.0	1.028/1.394	8.0	30o	-81.35+/-0.24	6.17	Thr=300mV B.cur=0.58uAmp
  13059-13060	5	1	0.0	1.028/1.394	8.0	30o	-80.74+/-0.34	2.96	B.cur=0.80uAmp
  13061-13064	5	1	0.0	1.028/1.394	8.0	50o	-90.49+/-0.24	0.78	B.cur=0.80uAmp
  13065-13068	5	1	0.0	1.028/1.394	8.0	70o	-88.58+/-0.21	7.60	B.cur=0.80uAmp
  13070-13073	5	1	0.0	1.028/1.394	8.0	-30o	-11.73+/-0.24	0.07	B.cur=0.80uAmp
  13074-13077	5	1	0.0	1.028/1.394	8.0	54o	-90.67+/-0.24	3.78	B.cur=0.80uAmp
  13079-13082	4	1	0.0	1.651/1.387	8.0	54o	-89.95+/-0.22	2.02	B.cur=0.80uAmp
  13083-13086	3	1	0.0	2.291/1.387	8.0	54o	-89.58+/-0.15	8.10	B.cur=0.55uAmp
  13087-13090	2	1	0.0	2.921/1.391	8.0	54o	-91.03+/-0.19	1.36	B.cur=0.55uAmp
  13091-13094	5	1	0.0	1.065/1.392	8.0	30o	-81.94+/-0.23	1.19	B.cur=0.80uAmp
  Average	2,4,5	1	-	the targets	-	54o	-90.58+/-0.12	3.01	13074-13077 13079-13082 13087-13090
  Average	5	1	-	spin dance	-	-	-90.98+/-0.13	46.9	Max. angle 53.3o+/-1o
  Best	2,4,5	1	-	-	-	30o	-81.58+/-0.23	3.01	Scaled to all targets

  The table with detailed information is given here .
  For additional information see halog entry 255865 .
  

  Spin Dance Results

  In Hall A, the spin is parallel at a Wien angle of 53.3±1.0°. From this, assuming symmetric linacs, we derive the energy per linac of 583.35 MeV, which gives the Hall A energy of 5.899 GeV. This is about 7 MeV higher than the measured energy. The difference might be caused by a linacs' disbalance. The spin would be parallel at 15.5° in Hall B (5 passes) and at 23° in Hall C (4 passes). The sum of squares of the longitudinal polarizations in all 3 halls would be maximized at about 30°.
  A large chi2 of the spin dance fit (20/NDF) is likely caused by an energy instability, which affects the measurements at large spin angles (far from 54°)

  The final results:
  Pz=(-81.58 +/- 0.23(stat) +/- 2.0(syst))%
  The plot is given here .
  

  Spin Dance Results Correction

  The Spin Dance results were corrected after Mini Spin Dance in 02/11/2009 (see below). For the beam energy and current - see the Chart . Beam energy (HALLA:p) fluctuation was ~2.5MeV during the Moller measurements.
  After old on-line and off-line analysis (see plots a) and b) ) the Moller data was corrected on a difference between the beam energy readings from HALLA:p and the actual experiment energy 5892MeV (see plot c) ).
  Spin precession for the Hall A and the beam energy 5892MeV gives maximum at ~68^o (see. plot ). From the Spin Dance this angle is ~58^o. This discrepancy can be explained by the Linacs' energy disbalance ~0.8%.

  Beam polarization correction on the beam energy fluctuation was done for each Moller run (see. Table below ).

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760. The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included
  HALLA:p - Beam polarization (%) with correction on the beam energy from HALLA:p

  Runs	Target	Wien Filter	Polarization %	Chi2	HALLA:p	Chi2	Comments
  13055-13058	5	30o	-81.35+/-0.24	6.01	-80.72	5.35	B.cur=0.6uAmp
  13059-13060	5	30o	-80.74+/-0.34	2.92	-79.80	3.02	B.cur=0.8uAmp
  13061-13064	5	50o	-90.49+/-0.24	0.78	-89.82	0.20	B.cur=0.8uAmp
  13065-13068	5	70o	-88.03+/-0.21	0.21	-88.32	0.10	B.cur=0.8uAmp
  13070-13073	5	-30o	-9.33+/-0.24	14.1	-4.94	0.54	B.cur=0.8uAmp
  13074-13077	5	54o	-90.67+/-0.24	3.78	-90.23	4.40	B.cur=0.8uAmp
  13079-13082	4	54o	-89.96+/-0.22	2.02	-89.58	1.93	B.cur=0.8uAmp
  13083-13086	3	54o	-88.93+/-0.21	2.26	-88.01	2.33	B.cur=0.5uAmp
  13087-13090	2	54o	-91.00+/-0.19	1.34	-90.07	3.06	B.cur=0.5uAmp
  13091-13094	5	30o	-81.92+/-0.23	1.19	-79.89	1.66	B.cur=0.8uAmp
  Average	4,5	54o	-90.28+/-0.16	3.18	-89.88	3.25	-
  Average	2,3,4,5	54o	-90.19+/-0.10	3.18	-89.17	3.25	-
  Average	5	-	-81.47+/-0.15	3.74	-80.19	4.00	30deg.
  Best	2,4,5	30o	-81.12+/-0.15	-	-79.88	-	Scaled to all targets

  Run-by-Run Summary is presented in table .

  The final corrected results:
  Pz=(-79.88 +/- 0.15(stat) +/- 2.0(syst))%
  

• 24 January 2009 12:50 - 14:30. E.Chudakov, O.Glamazdin

  The beam energy is 5904MeV(accel), 583.5MeV(linac), 65.6437MeV(injector).
  Injector angle is 30^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=88, Slit=28. Fast raster was ON. Tuning took ~35m. There was no energy lock.
  

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760.
  The target angle is 20.5^o. The error is statistical only. BPM01Y position is included
  Cor.Pol - Polarization corrected on the beam energy fluctuation (HALLA:p)

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Polar. %	Chi2	Comments
  13097-13100	2	1	0.0	2.921/1.387	8.0	-79.77+/-0.21	1.29	-78.66	1.60	Thr=300mV B.cur=0.46uAmp
  13101-13104	3	1	0.0	2.291/1.382	8.0	-77.88+/-0.27	2.61	-76.77	2.07	B.cur=0.46uAmp
  13105-13108	5	1	0.0	1.033/1.392	8.0	-78.62+/-0.23	2.55	-79.90	2.01	B.cur=0.80uAmp
  13109-13112	4	1	0.0	1.666/1.390	8.0	-78.49+/-0.22	0.98	-79.86	0.80	B.cur=0.80uAmp
  Average	5,4	1	-	-	-	-78.55+/-0.16	3.34	-79.88	1.21	-

  The table with detailed information is given here .
  For additional information see halog entry 257599 .
  For the beam energy fluctuation see plot1 . Only targets 4 and 5 were using in the analysis.
  Run-to-run information see in table an on plot .
  The final results:
  Pz=(-79.88 +/- 0.16(stat) +/- 2.0(syst))%
  The plots are given here .
  

• 3 February 2009 18:00 - 19:30. E.Chudakov, O.Glamazdin

  The beam energy is 5904.9MeV(accel), 583.5MeV(linac), 65.6437MeV(injector).
  Injector angle is 30^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=150, Slit=19. Fast raster was ON. Tuning took ~1h40m. There was no energy lock.
  

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760. The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included
  Cor.Pol - Polarization corrected on beam energy fluctuation (HALLA:p)

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Polar. %	Chi2	Comments
  13117-13120	5	1	0.0	1.026/1.384	8.0	-75.43+/-0.23	1.31	-79.30	0.23	Thr=300mV B.cur=0.82uAmp
  13121-13124	4	1	0.0	1.665/1.387	8.0	-76.22+/-0.21	1.34	-78.99	0.27	B.cur=0.82uAmp
  13125-13128	2	1	0.0	2.920/1.377	8.0	-75.59+/-0.18	0.70	-75.02	0.75	B.cur=0.42uAmp
  Average	5,4	1	-	-	-	-75.84+/-0.16	1.78	-79.14	0.46	-

  The table with detailed information is given here .
  For additional information see halog entry 258810 .
  Target 2 was not included in summary result (see Chart ). Run-by-run information given in table an on plot

  The final corrected results:
  Pz=(-79.14 +/- 0.16(stat) +/- 2.0(syst))%
  The plot is given here .
  

  E-06-014: d2n experiment

• 7 February 2009 10:00 - 14:00. E.Chudakov, O.Glamazdin

  The beam energy is 5904.9MeV(accel), 583.5MeV(linac), 65.6437MeV(injector).
  Injector angle is 30^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=94, Slit=17.6. Fast raster was ON.
  Tuning took ~2h.
  There was no energy lock.
  

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760. The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included
  Cor.Pol - Polarization corrected on beam energy fluctuation (HALLA:p)

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Polar. %	Chi2	Comments
  13131-13138	5	1	0.0	1.026/1.382	8.0	-75.45+/-0.16	5.80	-79.41	3.14	Thr=300mV B.cur=0.8uAmp
  13139-13142	4	1	0.0	1.656/1.387	8.0	-75.24+/-0.22	0.14	-79.36	1.26	B.cur=0.8uAmp
  13143-13146	2	1	0.0	2.916/1.384	8.0	-75.43+/-0.19	1.00	-73.43	0.25	B.cur=0.4uAmp
  Average	5,4,2	1	-	-	-	-75.39+/-0.11	3.73	-79.40	2.41	-

  The table with detailed information is given here .
  For additional information see halog entry 259496 .

  For the beam energy fluctuation see plot1 .
  Run-by-run information see in table an on plot .

  The final corrected results:
  Pz=(-79.40 +/- 0.13(stat) +/- 2.0(syst))%
  The plot is given here .
  

• 9 February 2009 10:00 - 16:15. O.Glamazdin

  The beam energy is 1230.9MeV(accel), 583.5MeV(linac), 65.6437MeV(injector).
  Injector angle is 30^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=143, Slit=15.75. Fast raster was ON.
  Tuning took about 1h30m and it was no beam from 12:30 till 14:40.
  There was no energy lock.
  

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760. The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included
  Cor.Pol - Polarization corrected on beam energy fluctuation (HALLA:p) and 0.8% Linacs' disbalance

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Polar. %	Chi2	Comments
  13152-13161	5	1	0.0	1.021/1.387	8.0	-72.63+/-0.22	1.7	-72.71	1.8	Thr=300mV B.cur=0.7uAmp
  13162-13165	4	1	0.0	1.651/1.387	8.0	-71.53+/-0.25	1.6	-71.65	1.6	B.cur=0.7uAmp
  13166-13170	2	1	0.0	2.916/1.387	8.0	-70.77+/-0.21	0.3	-71.82	0.3	B.cur=0.5uAmp
  Average	5,4,2	1	-	-	-	-71.62+/-0.13	3.5	-71.70	3.64	-

  The table with detailed information is given here .
  Runs 13156,13157 - wrong HV setting.
  Target 5: runs 13152-13155 and 13160,13161. 13160 and 13161 were measured after 2 hours of no beam.
  Run 13168 - wrong apperture signal.
  For additional information see halog entry 260040 .

  For the beam energy and current - see the Chart 1 and Chart 2 . The energy seems to have fluctuated much smaller than at 5 passes.
  The energy measured (HALLA:p) fluctuated on the Chart 1 with an amplitude ~0.2MeV and has a shift +0.4MeV above the experiment energy 1230MeV. On the Chart 2 (when dipole problem in Arc was fixed) it seems the energy measured (HALLA:p) has only fluctuation around 1230MeV with no shift.

  At the Wien filter angle 30deg. and the beam energy 1230MeV we have in the HallA 78% of 100% longitudinal polarization (at the Wien angle 54deg.). If we scale Moller result with the beam polarization at 54deg. = -90.58% (see Moller results from Spin Dance 01/13/09) we have -90.58*0.78=-70.65%.
  Beam polarization correction on the beam energy fluctuation (HALLA:p) was done for each Moller run. Run-by-run information see in table .

  The final results:
  Pz=(-71.70 +/- 0.13(stat) +/- 1.7(syst))%
  The plot is given here .
  

• 11 February 2009 15:30 - 20:15. E.Chudakov, O.Glamazdin

  The beam energy is 5904MeV(accel), 583.5MeV(linac), 65.6437MeV(injector).
  Injector angle is 30^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=106, Slit=16.9. Fast raster was ON.

  SPIN DANCE

  There was no energy lock.

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760. The target angle is 20.5^o Threshold=300mV.
  The error is statistical only. BPM01Y position is included.
  Cor.Pol - Polarization corrected on beam energy fluctuation (HALLA:p)

  Runs	Target	Type	T.Pos.	Encoder	BOP	Wien Filter	Polarization %	Chi2	Cor.Polar. %	Chi2	Comments
  13174-13175	5	1	0.0	1.031/1.385	8.0	30o	81.57+/-0.23	1.2	80.63	0.5	B.cur=0.8uAmp
  13176-13179	4	1	0.0	1.653/1.385	8.0	30o	80.97+/-0.15	3.2	80.57	1.1	B.cur=0.8uAmp
  Average	4,5	1	-	-	-	30o	81.15+/-0.12	2.7	80.60	0.8	-
  13180-13181	5	1	0.0	1.031/1.385	8.0	20o	72.64+/-0.22	1.3	71.96	1.2	B.cur=0.8uAmp
  13182-13185	4	1	0.0	1.656/1.382	8.0	20o	70.44+/-0.15	13.9	72.31	1.2	B.cur=0.8uAmp
  Average	4,5	1	-	-	-	20o	71.14+/-0.12	13.7	72.20	1.5	-
  13186-13187	5	1	0.0	1.026/1.389	8.0	23o	73.14+/-0.22	5.0	74.55	12.0	B.cur=0.8uAmp
  13189-13190	4	1	0.0	1.656/1.387	8.0	23o	73.58+/-0.21	3.2	74.87	1.3	B.cur=0.8uAmp
  Average	4,5	1	-	-	-	23o	73.38+/-0.15	5.0	74.72	6.2	-

  The table with detailed information is given here .
  For additional information see halog entry 260554
  The plot is given here .
  

  Mini Spin Dance Results

  There was no energy lock. For the beam energy and current - see the Chart . Beam energy (HALLA:p) fluctuation was ~2.5MeV
  during the Moller measurements.
  Mini Spin Dance results were analysed together with 01/13/09 Spin Dance results. After the Moller raw data analys (see plot b) ) we corrected the Moller data on a difference between the beam energy readings from HALLA:p and the actual experiment energy 5892MeV (see plot c) ).
  Spin precession for the Hall A and the beam energy 5892MeV gives maximum at ~68^o (see. plot ). From the Spin Dance this angle is ~58^o. This discrepancy can be explained by the Linacs' energy disbalance ~0.8%.

  Beam polarization correction on the beam energy fluctuation and the Linacs' energy disbalance was done for each Moller run (see. Table above - "Cor.Polar. %" column). Summary is presented on plot and in table .

  The Wien filter angle 23^o was choosen as an optimal for the Hall A and the Hall C beam polarization values. After all corrections from plot we can see that the optimal Wien filter angle for the Hall A and the Hall C is 19^o.
  The Wien filter angle 23^o gives for the Hall A a bit lager polarization.

  The final results for the Wien filter angle 23^o:
  Pz=(74.72 +/- 0.15(stat) +/- 2.0(syst)%
  

• 19 February 2009 20:45 - 22:40. E.Chudakov, O.Glamazdin

  The beam energy is 5904.9MeV(accel), 583.5MeV(linac), 65.6437MeV(injector).
  Injector angle is 23^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=225, Slit=15.85. Fast raster was ON.
  Tuning took 45min.
  

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760. The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included
  Cor.Pol - Polarization corrected on beam energy fluctuation (HALLA:p)

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Polar. %	Chi2	Comments
  13193-13196	5	1	0.0	1.031/1.387	8.0	-74.25+/-0.24	1.66	-74.43	0.46	Thr=300mV B.cur=0.8uAmp
  13197-13200	4	1	0.0	1.653/1.389	8.0	-73.02+/-0.22	1.58	-74.50	1.38	B.cur=0.8uAmp
  Average	5,4	1	-	-	-	-73.58+/-0.16	3.29	-74.47	1.03	Without lock
  13201-13204	5	1	0.0	1.031/1.389	8.0	-74.75+/-0.21	4.12	-74.75	3.60	B.cur=1.0uAmp
  13206-13209	4	1	0.0	1.651/1.389	8.0	-74.20+/-0.20	0.17	-74.14	0.88	B.cur=1.0uAmp
  Average	5,4	1	-	-	-	-74.46+/-0.15	2.40	-74.43	2.61	With lock
  Average	5,4	1	-	-	-	-74.05+/-0.11	3.76	-74.49	1.59	For all runs

  The table with detailed information is given here .
  For additional information see halog entry 262181 .

  For the beam energy fluctuation see plot . There was no energy lock for the first half of the measurement (runs 13192-13200), and a lock in ARC2 using a tool called "PID" (told us by the MCC) for the rest of runs. Beam energy correction was done for all runs. Run-by-run information see in table an on plot .

  The final corrected results:
  Pz=(-74.49 +/- 0.11(stat) +/- 2.0(syst))%
  The plot is given here .
  

• 03 March 2009 18:05 - 21:15. E.Chudakov, O.Glamazdin

  The beam energy is 5904.9MeV(accel), 583.5MeV(linac), 65.6437MeV(injector).
  Injector angle is 30.0^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=191, Slit=15.5. Fast raster was ON.
  Tuning took 1h. Initially the Moller dipole setting was wrong.

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760. The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included
  Cor.Pol - Polarization corrected on beam energy fluctuation (HALLA:p)

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Polar. %	Chi2	Comments
  13226-13229	5	1	0.0	1.021/1.381	8.0	-80.40+/-0.19	3.03	-79.91	1.42	Thr=300mV B.cur=1.1uAmp
  13230-13231	5	1	0.0	1.021/1.381	8.0	-79.37+/-0.28	0.05	-79.90	0.03	Trigger:RLG+LLG
  13232-13235	4	1	0.0	1.643/1.392	8.0	-80.24+/-0.18	0.58	-79.42	1.52	-
  Average	5,4	1	-	-	-	-80.32+/-0.12	2.31	-79.65	1.46	For all runs

  The table with detailed information is given here .
  Runs 13230-13231: trigger Left LG + Right LG, no apperture counter in trigger.
  For additional information see halog entry 264402 .

  For the beam energy fluctuation see plot . There was an energy lock in ARC2 using a tool called "PID". This day it was not running properly (see elog 1460400). The next day it was fixed (see elog 1460485). Beam energy correction was done for all runs. Run-by-run information see in table an on plot .

  The final corrected results:
  Pz=(-79.65 +/- 0.12(stat) +/- 2.0(syst))%
  The plot is given here .
  

• 06 March 2009 17:05 - 20:15. E.Chudakov, O.Glamazdin

  The beam energy is 4739.83MeV(accel), 583.5MeV(linac), 65.6437MeV(injector).
  Injector angle is -18.0^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=220, Slit=16. Fast raster was ON.
  Tuning took ~1h. Again, initially the Moller dipole setting was wrong.
  

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760. The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included
  Cor.Pol - Polarization corrected on beam energy fluctuation (HALLA:p)

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Polar. %	Chi2	Comments
  13252-13255	5	1	0.0	1.021/1.389	8.0	66.01+/-0.20	5.34	64.55	0.69	Thr=300mV B.cur=1uAmp
  13256-13259	5	1	0.0	1.021/1.389	8.0	65.57+/-0.20	0.12	64.36	0.12	Trigger:RLG+LLG
  13260-13263	4	1	0.0	1.651/1.389	8.0	64.40+/-0.19	2.87	63.00	2.92	-
  13264-13265	5	1	0.0	1.021/1.389	8.0	65.39+/-0.28	0.88	63.98	1.36	-
  Average	5,4	1	-	-	-	65.29+/-0.11	4.92	63.93	3.97	For all runs

  The table with detailed information is given here .
  Runs 13256-13259: trigger Left LG + Right LG, no apperture counter in trigger.
  For additional information see halog entry 264979 .

  For the beam energy fluctuation see plot . There was an energy lock in ARC2 using a tool called "PID". Beam energy correction was done for all runs. Run-by-run information see in table an on plot .

  The final corrected results:
  Pz=(63.93 +/- 0.11(stat) +/- 2.0(syst))%
  The plot is given here .
  

• 12 March 2009 18:00 - 19:40. A.Saha, O.Glamazdin

  The beam energy is 4744.24MeV(accel), 468.1MeV(linac), 52.6613MeV(injector).
  Injector angle is 21.2^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=125, Slit=17.88. Fast raster was ON.
  Tuning took ~35min.

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760. The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included
  Cor.Pol - Polarization corrected on beam energy fluctuation (HALLA:p)

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Polar. %	Chi2	Comments
  13268-13271	5	1	0.0	1.011/1.397	8.0	-61.49+/-0.20	0.64	-61.49	0.64	Thr=300mV B.cur=1uAmp
  13272-13275	4	1	0.0	1.658/1.392	8.0	-60.25+/-0.18	0.32	-60.25	0.32	-
  Average	5,4	1	-	-	-	-60.79+/-0.13	3.4	-60.79	3.4	For all runs

  The table with detailed information is given here .
  
  For additional information see halog entry 265694 .

  For the beam energy fluctuation see the plot . There was an energy lock in ARC2 using "PID". The Energy lock was usefull this time. The beam energy was stable (fluctuation was less than +/-0.1MeV). The beam energy correction for the Moller results is not needed.

  The final corrected results:
  Pz=(-60.79 +/- 0.13(stat) +/- 1.7(syst))%
  The plot is given here .
  

  E-05-015 and E-08-005: Measurement of the Target Single-Spin Asymmetry in Quasi-Elastic 3He(e,e")

• 24 April 2009 22:00 - 24:00. E.Chudakov, A.Saha

  The beam energy is 1246.19MeV(accel), 590.2MeV(linac), 66.3975MeV(injector).
  Injector angle is -14.3961^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=100, Slit=15.75. Fast raster was ON.
  Tuning took ~30min.

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760.
  The target angle is 20.5^o. The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13293-13296	5	1	0.0	1.031/1.387	8.0	88.02+/-0.30	0.64	Thr=270mV B.cur=0.5uAmp
  13297-13300	4	1	0.0	1.656/1.390	8.0	88.32+/-0.27	0.32	-
  Average	5,4	1	-	-	-	88.19+/-0.20	0.8	For all runs

  The table with detailed information is given here .
  There was an energy lock in ARC2. The Energy lock was usefull. The beam energy was stable. The beam energy correction for the Moller results is not needed.
  For additional information see halog entry 268056 .

  The final results:
  Pz=(88.19 +/- 0.20(stat) +/- 1.7(syst))%
  The plot is given here .
  

• 30 April 2009 13:30 - 16:30. A.Saha, R.Michaels

  The beam energy is 3611.89MeV(accel), 590.2MeV(linac), 66.3975MeV(injector).
  Injector angle is 74.8283^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=139, Slit=27.0. Fast raster was ON.
  Tuning took ~60min.

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760.
  The target angle is 20.5^o. The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13309-13312	5	1	0.0	1.026/1.387	8.0	84.17+/-0.19	2.15	Thr=270mV B.cur=0.8uAmp
  13313-13316	4	1	0.0	1.648/1.392	8.0	84.10+/-0.17	3.00	-
  Average	5,4	1	-	-	-	84.13+/-0.13	2.35	For all runs

  The table with detailed information is given here .
  
  For additional information see halog entry 269968 .

  For the beam energy fluctuation see the plot . There was an energy lock in Hall C BSY dump line. The Energy lock was usefull. The beam energy was stable (fluctuation was about +0.2MeV). The beam energy correction for the Moller results is not needed.

  The final results:
  Pz=(84.13 +/- 0.13(stat) +/- 1.7(syst))%
  The plot is given here .
  

  E-05-102: Measurements of Ax and Az Asymmetries in the Quasi-elastic 3He(e,e'd) Reaction

• 14 May 2009 15:30 - 17:30. A.Saha

  The beam energy is 2428.74MeV(accel), 590.2MeV(linac), 66.3975MeV(injector).
  Injector angle is 66.9203^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=220, Slit=17.6. Fast raster was ON.
  Tuning took ~90min. Moller Dipole was not turned on for 1 hr

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760.
  The target angle is 20.5^o. The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13323-13326	5	1	0.0	1.033/1.394	8.0	84.10+/-0.21	0.80	Thr=270mV B.cur=0.8uAmp
  13327-13330	4	1	0.0	1.658/1.387	8.0	82.85+/-0.18	0.51	-
  Average	5,4	1	-	-	-	83.38+/-0.14	3.10	For all runs

  The table with detailed information is given here .
  
  For additional information see halog entry 273366 .

  For the beam energy fluctuation see the plot . There was Energy lock on Arc2. The beam energy was stable (fluctuation was less than 0.1MeV). The beam energy correction for the Moller results is not needed.

  The final results:
  Pz=(83.38 +/- 0.14(stat) +/- 1.7(syst))%
  The plot is given here .
  

• 20 May 2009 10:30 - 13:00. A.Saha

  The beam energy is 2428.74MeV(accel), 590.2MeV(linac), 66.3975MeV(injector).
  Injector angle is 66.9203^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=385, Slit=16.2. Fast raster was ON.
  Tuning took ~60min.

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760.
  The target angle is 20.5^o. The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13337-13342	5	1	0.0	1.033/1.390	8.0	78.59+/-0.23	8.2	Thr=270mV B.cur=0.7uAmp
  13343-13347	4	1	0.0	1.646/1.390	8.0	78.14+/-0.17	0.8	-
  Average	5,4	1	-	-	-	78.30+/-0.14	4.5	For all runs

  The table with detailed information is given here .
  
  For additional information see halog entry 275055 .

  For the beam energy fluctuation see the plot . There was Energy lock on Hall A PID. The beam energy was stable (fluctuation was less than 0.1MeV). The beam energy correction for the Moller results is not needed.

  The final results:
  Pz=(78.30 +/- 0.14(stat) +/- 1.7(syst))%
  The plot is given here .
  

• 27 May 2009 13:00 - 17:00. A.Saha, R.Michaels, A.Cansomme

  The beam energy is 2428.74MeV(accel), 590.2MeV(linac), 66.3975MeV(injector).
  Injector angle is 66.9203^o, the 1/2 wave plate was IN and OUT.
  Injector Laser attenuation=180, Slit=16.2. Fast raster was ON.
  Tuning took ~60min.

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760.
  The target angle is 20.5^o. The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  -	-	-	-	-	-	-	-	Half Wave Plane = IN
  13349-13353	5	1	0.0	1.030/1.399	8.0	-88.84+/-0.21	0.24	Thr=270mV B.cur=0.7uAmp
  13354-13357	4	1	0.0	1.651/1.397	8.0	-87.46+/-0.21	0.21	-
  Average	5,4	1	-	-	-	-88.15+/-0.15	1.58	For all runs with HWP=IN
  -	-	-	-	-	-	-	-	Half Wave Plane = OUT
  13358-13361	4	1	0.0	1.648/1.399	8.0	86.95+/-0.20	0.78	Thr=270mV B.cur=0.7uAmp
  13362-13365	5	1	0.0	1.026/1.397	8.0	87.56+/-0.22	1.01	-
  Average	5,4	1	-	-	-	87.23+/-0.15	1.50	For all runs with HWP=OUT

  The table with detailed information is given here .
  
  For additional information see halog entry 276872 .

  For the beam energy fluctuation see the plot . There was Energy lock on ARC2. The beam energy correction for the Moller results is not needed.

  The final results for Half Wave Plane = IN:
  Pz=(-88.15 +/- 0.15(stat) +/- 1.7(syst))%
  The plot is given here .
  The final results for Half Wave Plane = OUT:
  Pz=(+87.23 +/- 0.15(stat) +/- 1.7(syst))%
  The plot is given here .
  

  E-05-109: HAPPEX-III. A Measurement of Nucleon Strange Form Factors at High Q2

• 27 August 2009 17:30 - 23:30. O.Glamazdin

  The beam energy is 3483.9MeV(accel), 549.4MeV(North Linac), 590.6MeV(South Linac) , 64.125MeV(injector).
  Injector angle is 44.3048^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=72, Slit=19.3. Fast raster was ON.
  Tuning took ~60min.
  Hall C beam tunning was started from ~20:00. The beam was very unstable (energy, beam position etc)

  The theta acceptance is about +/-14^o and the mean analysing power is 0.760.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13416-13419	5	1	0.0	1.035/1.392	8.0	-80.76+/-0.27	0.5	Thr=300mV B.cur=0.6uAmp
  13421-13427	5	2	0.0	1.067/1.387	8.0	-80.58+/-0.28	8.5	-
  13428	5	3	0.0	-	8.0	-79.41+/-0.34	-	-
  Average	5	1,2,3	-	-	-	-80.36+/-0.17	7.6	-
  13429-13433	4	1	0.0	1.663/1.382	8.0	-78.00+/-0.23	1.0	-
  13434-13438	4	2	0.0	1.700/1.387	8.0	-78.24+/-0.26	2.1	-
  13439-13440	4	3	0.0	-	8.0	-77.93+/-0.31	-	-
  Average	4	1,2,3	-	-	-	-78.06+/-0.15	4.8	-
  Average	5,4	1,2,3	-	-	-	-79.07+/-0.11	7.1	-

  The table with detailed information is given here .
  
  For additional information see halog entry 286377.

  For the beam energy fluctuation see the plot . The beam energy correction for the Moller results is not needed because of the Wien filter is tuned for the maximal polarization in the Hall A.

  The final result:
  Pz=(-79.07 +/- 0.11(stat) +/- 1.7(syst))%
  The plot is given here .
  

• 28 August 2009 19:10 - 23:50. O.Glamazdin

  The beam energy is 3483.9MeV(accel), 549.4MeV(North Linac), 590.6MeV(South Linac) , 64.125MeV(injector).
  Injector angle is 44.3048^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=68, Slit=20.5. Fast raster was OFF.
  Tuning took ~2hours.
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.760.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13443-13446	5	1	0.0	1.009/1.389	8.0	-79.24+/-0.25	1.4	Thr=300mV B.cur=0.6uAmp
  13447	5	3	0.0	-	8.0	-80.73+/-0.35	-	-
  Average	5	1,3	-	-	-	-79.78+/-0.20	4.5	-
  13448-13451	4	1	0.0	1.653/1.389	8.0	-77.59+/-0.24	0.3	B.cur=0.5uAmp
  13452	4	3	0.0	-	8.0	-79.29+/-0.34	-	-
  Average	4	1,3	-	-	-	-78.16+/-0.20	4.9	-
  13453-13457	3	1	0.0	2.247/1.387	8.0	-80.18+/-0.21	2.9	B.cur=0.3uAmp
  13458	3	3	0.0	-	8.0	-78.59+/-0.29	-	-
  Average	3	1,3	-	-	-	-79.63+/-0.17	6.7	-
  13459-13462	2	1	0.0	2.889/1.385	8.0	-78.61+/-0.19	2.0	B.cur=0.2uAmp
  13463	2	3	0.0	-	8.0	-77.55+/-0.25	-	-
  Average	2	1,3	-	-	-	-78.22+/-0.15	0.21	-
  Average	2-5	1,3	-	-	-	-78.89+/-0.09	7.5	-

  The table with detailed information is given here .
  
  For additional information see halog entry 286688 .
  

  The final result:
  Pz=(-78.89 +/- 0.09(stat) +/- 1.7(syst))%
  The plot is given here .
  

• 31 August 2009 14:50 - 23:50. O.Glamazdin, A.Saha

  The beam energy is 3483.9MeV(by M. Tiefenback), 549.4MeV(North Linac), 590.6MeV(South Linac), 64.125MeV(injector).
  Injector angle is 44.3048^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=120, Slit=15.1. Fast raster was ON. Tuning took ~1hour.
  

  SPIN DANCE

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.760. The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Wien Filter	Polarization %	Chi2	Comments
  13467-13470	5	1	0.0	1.055/1.382	8.0	40.30o	-80.28+/-0.27	3.4	Thr=300mV B.cur=0.58uAmp
  13471-13475	5	1	0.0	1.055/1.382	8.0	110.27o	14.11+/-0.25	0.8	B.cur=0.58uAmp
  13476-13479	5	1	0.0	1.055/1.382	8.0	-70.22o	-5.37+/-0.26	1.9	B.cur=0.57uAmp
  13480-13483	5	1	0.0	1.055/1.382	8.0	14.20o	-89.30+/-0.26	0.9	B.cur=0.56uAmp
  13484-13487	4	1	0.0	1.619/1.389	8.0	14.20o	-87.88+/-0.25	0.9	B.cur=0.56uAmp
  13488-13493	3	1	0.0	2.249/1.385	8.0	14.20o	-88.23+/-0.19	2.2	B.cur=0.36uAmp
  13494-13497	2	1	0.0	2.882/1.382	8.0	14.20o	-89.17+/-0.19	0.2	B.cur=0.25uAmp
  Average	2,3,4,5	1	-	-	-	14.20o	-88.65+/-0.11	2.9	All targets

  The table with detailed information is given here .
  For additional information see halog entry 287270 .
  

  Spin Dance Results

  The spin dance result is given here . Comparison of the spin dance and prediction for the beam polarization precession for linacs without dis- balance and with dis-balance 7.5% is given on plot1 for MCC beam energy (Eb=3.4812GeV) and on plot2 for Tiefenback beam energy (Eb=3.4839GeV). The linacs dis-balance by MCC definition corresponds (North Linac)/(South Linac). The Wien filter angle 14.2° was chosen as an optimal for the Hall A with the beam energy Eb=3.4839GeV (by M. Tiefenback) and linacs dis-balance=7.5%. The Wien filter angle 17.° is an optimal for the Hall A with the beam energy Eb=3.4812GeV(by MCC) and linacs dis-balance=7.5%. The beam polarization difference between 14.2° and 17° is 0.998682.

  More Spin Dance Analysis

  More detailed analysis of the Spin Dance results fit show much larger Chi2 for fit with three Wien filter angles 14.2, 44.3048 and 110.27deg (see plot3 ) than for three Wien filter angles -70.22, 14.2, 44.3048deg (see plot4 ). For large Wien filter angles,like 110deg, the beam trajectory is not strait. Because of that measurements with large Wien filter angles are less trusted for fit and end errors for such angles should be increased. The result of fit with increased error for Wien angle 110.27deg. is given on plot4 . From the more detailed Spin dance analysis ( plot4 and plot5 ) the optimal Wien filter angle for the Hall A is ~16.5deg.

  The final results:
  Pz=(-88.65 +/- 0.11(stat) +/- 1.7(syst))%
  The plot is given here .
  

• 05 September 2009 19:05 - 21:40. O.Glamazdin

  The beam energy is 3483.9MeV(accel), 549.4MeV(North Linac), 590.6MeV(South Linac) , 64.125MeV(injector).
  Injector angle is 17.20^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=150, Slit=15. Fast raster was ON.
  Tuning took ~45minutes.
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.760.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13502-13505	5	1	0.0	1.009/1.385	8.0	-90.47+/-0.26	0.3	Thr=300mV B.cur=0.6uAmp
  13506-13509	4	1	0.0	1.614/1.385	8.0	-89.43+/-0.25	0.6	B.cur=0.6uAmp
  13510-13513	3	1	0.0	2.247/1.382	8.0	-89.41+/-0.23	0.3	B.cur=0.4uAmp
  13514-13517	2	1	0.0	2.886/1.387	8.0	-89.74+/-0.18	0.4	B.cur=0.3uAmp
  13518	2	3	0.0	-	8.0	-89.47+/-0.24	-	B.cur=0.3uAmp
  Average	2	1,3	-	-	-	-89.64+/-0.14	0.2	-
  Average	2-5	1,3	-	-	-	-89.69+/-0.10	1.2	-

  Measurement was done after the Wien filter angle change from 14.2° to 17.2°.
  The table with detailed information is given here .
  
  For additional information see halog entry 288177 .
  

  The final result:
  Pz=(-89.69 +/- 0.1(stat) +/- 1.7(syst))%
  The plot is given here .
  

• 11 September 2009 20:30 - 22:45. O.Glamazdin

  The beam energy is 3483.9MeV(accel), 549.4MeV(North Linac), 590.6MeV(South Linac) , 64.125MeV(injector).
  Injector angle is 17.20^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=162, Slit=14.8. Fast raster was OFF.
  Tuning took ~40minutes.
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.760.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13520-13524	5	1	0.0	1.016/1.387	8.0	89.47+/-0.25	3.3	Thr=300mV B.cur=0.6uAmp
  13525-13527	4	1	0.0	1.619/1.387	8.0	89.53+/-0.29	2.3	B.cur=0.6uAmp
  13529-13532	3	1	0.0	2.249/1.387	8.0	90.29+/-0.21	0.4	B.cur=0.45uAmp
  13533-13536	2	1	0.0	2.884/1.382	8.0	89.93+/-0.19	0.2	B.cur=0.26uAmp
  Average	2-5	1	-	-	-	89.86+/-0.10	1.8	-

  The table with detailed information is given here .
  
  For additional information see halog entry 289150 .

  The final result:
  Pz=(89.86 +/- 0.10(stat) +/- 1.7(syst))%
  The plot is given here .
  

  Mott: 87.75+/-1.0 (IHWP=OUT)
  86.12 +/- 1.28stat +/- 1.03sys (IHWP=OUT) (see ELOG/POLOG) . (see ELOG/POLOG) .

• 17 September 2009 12:15 - 15:50. O.Glamazdin, A.Saha

  The beam energy is 3483.9MeV(accel), 549.4MeV(North Linac), 590.6MeV(South Linac) , 64.125MeV(injector).
  Injector angle is 17.20^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=140, Slit=15.0. Fast raster was ON.
  Tuning took 1hour 15minutes.
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.760.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13541-13542	5	1	0.0	1.009/1.380	8.0	88.52+/-0.4	0.6	Thr=250mV B.cur=0.6uAmp HV=3.484
  13543-13544	5	1	0.0	1.009/1.380	8.0	88.97+/-0.4	0.1	Thr=300mV
  13541-13544	5	1	-	-	-	88.72+/-0.3	0.5	HV=3.484.set
  13546-13547	5	1	0.0	1.009/1.380	8.0	89.66+/-0.4	1.4	Thr=300mV HV=test_3.484
  13548-13549	5	1	0.0	1.009/1.380	8.0	89.55+/-0.3	0.1	Thr=250mV
  13546-13549	5	1	-	-	-	89.60+/-0.3	0.5	HV=test_3.484.set
  13550-13553	5	1	0.0	1.009/1.380	8.0	89.51+/-0.3	2.6	Thr=300mV HV=3.484
  Average	5	1	0.0	1.009/1.380	8.0	89.26+/-0.15	2.6	Thr=300mV
  13554-13527	4	1	0.0	1.612/1.382	8.0	87.91+/-0.23	1.0	B.cur=0.6uAmp
  13558-13561	3	1	0.0	2.247/1.380	8.0	88.24+/-0.23	0.5	B.cur=0.35uAmp
  13562-13565	2	1	0.0	2.889/1.380	8.0	88.79+/-0.23	0.4	B.cur=0.15uAmp
  Average	2-5	1	-	-	-	88.73+/-0.10	2.4	-

  The table with detailed information is given here .
  For additional information see halog entry 290141 .

  The final result:
  Pz=(88.73 +/- 0.1(stat) +/- 1.7(syst))%
  The plot is given here .

  Mott: 84.21 +/- 2.01stat +/- 1.01sys (IHWP=OUT, after beam spot move) (see ELOG/POLOG)

• 23 September 2009 16:30 - 19:50. O.Glamazdin, A.Saha

  The beam energy is 3483.9MeV(accel), 549.6MeV(North Linac), 590.6MeV(South Linac) , 64.08MeV(injector).
  Injector angle is 17.20^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=190, Slit=15. Fast raster was ON.
  Tuning took 1hour 30minutes.
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.760.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13566-13569	5	1	0.0	1.009/1.385	8.0	-90.48+/-0.23	0.1	Thr=300mV B.cur=0.6uAmp
  13570-13573	4	1	0.0	1.617/1.382	8.0	-88.45+/-0.24	1.0	B.cur=0.6uAmp
  13574-13577	3	1	0.0	2.249/1.385	8.0	-88.76+/-0.24	0.6	B.cur=0.45uAmp
  13578-13581	2	1	0.0	2.891/1.380	8.0	-89.43+/-0.19	1.7	B.cur=0.26uAmp
  13582	2	3	0.0	-	8.0	-89.83+/-0.23	-	B.cur=0.26uAmp
  Average	2-5	1,3	-	-	8.0	-89.41+/-0.10	4.7	-

  The table with detailed information is given here .
  For additional information see halog entry 291216 .

  The final result:
  Pz=(-89.41 +/- 0.1(stat) +/- 1.7(syst))%
  The plot is given here .

  Mott: (IHWP=IN) 86.63 +/- 0.93stat +/- 1.04sys (see ELOG/POLOG)

• 04 October 2009 8:45 - 14:20. O.Glamazdin

  The beam energy is 3483.9MeV(accel), 549.6MeV(North Linac), 590.6MeV(South Linac) , 64.08MeV(injector).
  Injector angle is 17.20^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=156, Slit=15. Fast raster was ON.
  Beam tuning took 1hour 45minutes.
  Moller detector tuning took 45min.
  Brad Sawatzky took some data for the fast Moller DAQ.
  Beam spot moving and Mott measurement was done 09/29/2009.
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.760.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13588-13602	5	1	0.0	1.009/1.385	8.0	-90.22+/-0.2	3.1	HV and threshold tuning B.cur=0.6uAmp
  13603-13606	5	1	0.0	1.009/1.385	8.0	-90.16+/-0.28	0.1	Thr=370mV Att=156 Slit=15
  13607-13610	4	1	0.0	1.617/1.382	8.0	-88.61+/-0.20	0.9	B.cur=0.6uAmp Slit=15
  13611-13614	3	1	0.0	2.249/1.385	8.0	-90.00+/-0.24	1.8	B.cur=0.42uAmp Slit=14.1
  13617-13621	2	1	0.0	2.891/1.380	8.0	-89.55+/-0.16	1.5	B.cur=0.22uAmp Slit=13.8
  13622-13623	5	1	0.0	1.009/1.385	8.0	-89.64+/-0.29	0.1	B.cur=0.6uAmp Att.=156 Slit=14.8
  13625	5	1	0.0	-	8.0	0.0	-	bleed-through
  13629-13632	5	1	0.0	1.009/1.385	8.0	-89.58+/-0.29	0.1	B.cur=0.45uAmp Att=100 Slit=17.6
  Average	5	1	-	-	8.0	-89.98+/-0.15	0.5	-
  Average	2-5	1	-	-	8.0	-89.45+/-0.09	2.8	Runs 13603-13623

  The table with detailed information is given here .
  
  Moller detector adjustment was done 09/29/09 - see halog entry 292319 . Runs 13588-13602 - adjusting of detector HVs and thresholds. Run 13625 - bleed-through check. There is no any leak from another halls to the Hall A was found.
  Runs 13603-13625 Hall A laser attenuator=156 (HAPPEX value), Slit=13.8
  Runs 13629-13632 Hall A laser attenuator=100, Slit=17.6
  There is no any dependence of Slit/Attenuator combination on the Hall A beam polarization was found.
  Hall A laser phase profile measurement was done by PES group see POLOG entry 1490156 . All Moller measurements were done at the same Hall A laser phase with HAPPEX one.
  For additional information see halog entry 293093 .
  

  The final result:
  Pz=(-89.45 +/- 0.09(stat) +/- 1.7(syst))%
  The plot (scaler analysis) is given here .
  The plot with old (ADC) analysis is given here .

  Mott: (IHWP=IN) 84.08 +/- 1.01stat +/- 1.01sys (see ELOG/POLOG)

• 11 October 2009 9:50 - 13:10. O.Glamazdin

  The beam energy is 3483.9MeV(accel), 549.6MeV(North Linac), 590.6MeV(South Linac) , 64.08MeV(injector).
  Injector angle is 17.20^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=194, Slit=14.53. Fast raster was ON.
  Beam tuning took 1hour 10minutes.
  In the begining of the measurements scalers rate was very unstable (from 17kHz upto 26kHz for the same beam current).
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.760.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13634-13637	5	1	0.0	1.011/1.385	8.0	89.36+/-0.2	1.8	Thr=320mV B.cur=0.6uAmp Att=194 Slit=14.53
  13638-13641	4	1	0.0	1.617/1.380	8.0	87.79+/-0.22	2.2	B.cur=0.52uAmp Slit=14.23
  13642-13645	3	1	0.0	2.249/1.385	8.0	88.98+/-0.23	0.1	B.cur=0.32uAmp Slit=13.87
  13646-13649	2	1	0.0	2.886/1.380	8.0	89.00+/-0.18	0.8	B.cur=0.22uAmp Slit=13.75
  13650-13651	5	1	0.0	1.011/1.385	8.0	89.85+/-0.30	0.1	B.cur=0.6uAmp Slit=14.53
  Average	5	1	0.0	-	8.0	89.63+/-0.17	0.1	-
  13652-13655	5	1	0.0	1.011/1.385	8.0	92.21+/-0.30	0.4	LGL234 and LGR678
  Average	2-5	1	-	-	8.0	88.92+/-0.10	3.4	Runs 13634-13651

  The table with detailed information is given here .
  For additional information see halog entry 294406 .
  

  The final result:
  Pz=(88.92 +/- 0.10(stat) +/- 1.7(syst))%
  The plot is given here .
  

• 13 October 2009 12:00 - 18:50. O. Glamazdin, A, Saha, Chun-Min Jen (Mindy)

  The beam energy is 3483.9MeV(accel), 549.6MeV(North Linac), 590.6MeV(South Linac) , 64.08MeV(injector).
  Injector angle is 17.20^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=165, Slit=14.20. Fast raster was ON.
  12 October beam spot move was done. There was no Mott measurement. Beam tuning took more than 2hours.
  In the beginning of measurements single arm scalers rate was very unstable (runs 13657-1366). The reason is very narrow slit to reduce the beam current from 100uAmp(HAPPEX) to 0.5uAmp(Moller) at the same attenuator. After discussion with MCC crew chief we have change attenuator from 165 to 85 and adjust current with slit. Single arm rates becomes stable and reasonable.
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.760.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13661-13666	5	1	0.0	1.011/1.380	8.0	-88.60+/-0.3	5.0	Thr=320mV B.cur=0.6uAmp Att=165 Slit=14.2
  13668-13671	4	1	0.0	1.615/1.385	8.0	-88.10+/-0.27	0.4	B.cur=0.5uAmp Att=85 Slit=16.0
  13672-13675	3	1	0.0	2.249/1.382	8.0	-88.35+/-0.26	4.0	B.cur=0.3uAmp Att=85 Slit=15.6
  13676-13679	2	1	0.0	2.884/1.385	8.0	-89.43+/-0.19	3.0	B.cur=0.2uAmp Att=82 Slit=15.4
  13681-13685	5	1	0.0	1.065/1.380	8.0	-88.73+/-0.17	1.9	B.cur=0.6uAmp Att=82 Slit=16.2
  13686-13689	5	1	0.0	1.065/1.380	8.0	-91.67+/-0.3	3.1	LGL234 and LGR678
  Average	2-5	1	-	-	8.0	-88.79+/-0.11	4.5	Runs 13668-13685

  The table with detailed information is given here .
  For additional information see halog entry 294760 .
  

  The final result:
  Pz=(-88.79 +/- 0.11(stat) +/- 1.7(syst))%
  The plot is given here .
  MOTT:
  Hall A: IHWP=IN, Mott Data Taken: 16Oct09 08:36:28, Polarization: (86.38 +/- 0.92stat +/- 1.04sys) %
  Hall A: IHWP=OUT, Mott Data Taken: 16Oct09 08:43:48, Polarization: (85.62 +/- 0.87stat +/- 1.03sys) %
  Mott: (IHWP=IN) 86.38 +/- 0.92stat +/- 1.04sys (see POLOG/ELOG)

  Hall A Laser Phase Study

• 22-23 October 2009 20:20 - 4:15. O. Glamazdin, B. Sawatzky

  The beam energy is 3483.9MeV(accel), 549.6MeV(North Linac), 590.6MeV(South Linac) , 64.08MeV(injector).
  Injector angle is 17.20^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=165, Slit=14.68. Phase=163.8deg. Fast raster was OFF.
  Detector thresholds=300mV.
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.760.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included.

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13699-13702	5	1	0.0	1.009/1.385	8.0	-89.72+/-0.2	1.5	B.cur=0.65uAmp Att=165 Slit=14.68
  13703-13706	5	1	0.0	1.009/1.385	8.0	-89.80+/-0.2	0.2	B.cur=0.6uAmp Att=120 Slit=15.94
  13707-13710	4	1	0.0	1.614/1.387	8.0	-89.88+/-0.24	2.6	B.cur=0.6uAmp Att=120 Slit=15.91
  13711-13714	3	1	0.0	2.244/1.385	8.0	-88.60+/-0.23	0.7	B.cur=0.3uAmp Att=120 Slit=15.50
  13715-13718	2	1	0.0	2.884/1.387	8.0	-89.60+/-0.20	4.0	B.cur=0.2uAmp Att=120 Slit=14.67
  13719	3	3	0.0	2.244/1.385	8.0	-88.31+/-0.4	-	B.cur=0.3uAmp Att=120 Slit=15.50
  13720-13723	5	1	0.0	1.060/1.385	8.0	-89.71+/-0.14	4.8	B.cur=0.65uAmp Att=120 Slit=15.84
  13724-13730	5	1	0.0	1.060/1.385	8.0	-91.61+/-0.3	1.1	LGL234 and LGR678
  13731-13761	5	1	0.0	1.060/1.385	8.0	-	-	Phase scan Att=120 Slit=15.84
  13731	5	1	0.0	1.060/1.385	8.0	-88.45+/-1.2	-	Phase=-148deg B.cur=0.60uAmp
  13732	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-148deg Hall A laser OFF
  13733	5	1	0.0	1.060/1.385	8.0	-89.55+/-1.2	-	Phase=-150deg B.cur=0.65uAmp
  13734	5	1	0.0	1.060/1.385	8.0	-87.11+/-1.2	-	Phase=-152deg B.cur=0.65uAmp
  13735	5	1	0.0	1.060/1.385	8.0	-88.81+/-1.2	-	Phase=-154deg B.cur=0.65uAmp
  13736	5	1	0.0	1.060/1.385	8.0	-91.83+/-1.2	-	Phase=-156deg B.cur=0.66uAmp
  13737	5	1	0.0	1.060/1.385	8.0	-90.87+/-1.2	-	Phase=-158deg B.cur=0.65uAmp
  13738	5	1	0.0	1.060/1.385	8.0	-90.41+/-1.2	-	Phase=-160deg B.cur=0.64uAmp
  13739	5	1	0.0	1.060/1.385	8.0	-84.90+/-1.2	-	Phase=-162deg B.cur=0.63uAmp
  13740	5	1	0.0	1.060/1.385	8.0	-86.77+/-1.2	-	Phase=-164deg B.cur=0.63uAmp
  13741	5	1	0.0	1.060/1.385	8.0	-89.68+/-1.2	-	Phase=-166deg B.cur=0.60uAmp
  13742	5	1	0.0	1.060/1.385	8.0	-88.94+/-1.3	-	Phase=-168deg B.cur=0.57uAmp
  13743	5	1	0.0	1.060/1.385	8.0	-91.06+/-1.3	-	Phase=-170deg B.cur=0.51uAmp
  13744	5	1	0.0	1.060/1.385	8.0	-89.55+/-1.4	-	Phase=-172deg B.cur=0.48uAmp
  13745	5	1	0.0	1.060/1.385	8.0	-86.73+/-1.5	-	Phase=-174deg B.cur=0.39uAmp
  13746	5	1	0.0	1.060/1.385	8.0	-89.45+/-1.7	-	Phase=-176deg B.cur=0.31uAmp
  13747	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-176deg Hall A laser OFF
  13748	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-178deg Hall A laser OFF
  13749	5	1	0.0	1.060/1.385	8.0	-93.75+/-2.1	-	Phase=-178deg B.cur=0.22uAmp
  13750	5	1	0.0	1.060/1.385	8.0	-88.58+/-3.5	-	Phase=-180deg B.cur=0.09uAmp
  13751	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-180deg Hall A laser OFF
  13752	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-174deg Hall A laser OFF
  13753	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-172deg Hall A laser OFF
  13754	5	1	0.0	1.060/1.385	8.0	-86.47+/-1.7	-	Phase=-148deg B.cur=0.61uAmp
  13755	5	1	0.0	1.060/1.385	8.0	-90.77+/-1.2	-	Phase=-148deg B.cur=0.60uAmp
  13756	5	1	0.0	1.060/1.385	8.0	-91.95+/-1.3	-	Phase=-146deg B.cur=0.49uAmp
  13757	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-146deg Hall A laser OFF
  13758	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-144deg Hall A laser OFF
  13759	5	1	0.0	1.060/1.385	8.0	-92.08+/-1.8	-	Phase=-144deg B.cur=0.31uAmp
  13760	5	1	0.0	1.060/1.385	8.0	-83.88+/-2.7	-	Phase=-142deg B.cur=0.14uAmp
  13761	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-142deg Hall A laser OFF
  13762-13765	5	1	0.0	1.060/1.385	8.0	-89.81+/-0.3	1.2	Att=165 Slit=14.6 Phase=-174
  13766-13770	5	1	0.0	1.060/1.385	8.0	-89.81+/-0.4	1.6	Att=165 Slit=14.6 Phase=-144
  Average	2-5	1	-	-	8.0	-89.49+/-0.09	2.9	Runs 13703-13718

  The table with detailed information is given here .
  
  For additional information see halog entry 296214 .
  Measurement was done after power outage (22 October)
  After the last Moller measurement Moller dipole was not turned OFF for about a day. Experiment was running with 100uAmp of a beam current (see ELOG ). Moller detector signals looks OK after the incident.
  16 October: MCC Moller procedure was updated.
  Bad/noisy shape of a leading adge of MPS signal going from Counting Room to Moller DAQ was found (see 296017 ). As the result, Moller DAQ marks as 'bad' a part of good Moller events and moves it out of analysis reducing statistics. It does not affect measured polarization value (see 296908 ).
  Hall A laser beam phase dependence study was done.
  

  The final result:
  Pz=(-89.49 +/- 0.09(stat) +/- 1.7(syst))%
  The plot is given here .
  

  Hall A Laser Phase Study

• 25 October 2009 9:45 - 13:45. O. Glamazdin, Chun-Min Jen (Mindy)

  The beam energy is 3483.9MeV(accel), 549.6MeV(North Linac), 590.6MeV(South Linac) , 64.08MeV(injector).
  Injector angle is 17.20^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=165. Phase=163.8deg. Fast raster was ON.
  Detector thresholds=300mV.
  Beam tuning took about 2 hours.
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.760.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included.

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13774-13775	5	1	0.0	1.009/1.385	8.0	-88.91+/-0.4	2.3	B.cur=0.8uAmp Att=165 Slit=15.70
  13776-13779	5	1	0.0	1.009/1.385	8.0	-88.95+/-0.3	4.9	B.cur=0.6uAmp Att=120 Slit=15.45
  13780-13789	5	1	0.0	1.060/1.385	8.0	-	-	Phase scan Att=165 Slit=15.45
  -	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-135deg Bcur=0.0uAmp
  13780	5	1	0.0	1.060/1.385	8.0	-55.50+/-5.7	-	Phase=-140deg Bcur=0.28uAmp
  13781	5	1	0.0	1.060/1.385	8.0	-84.32+/-1.4	-	Phase=-150deg Bcur=0.77uAmp
  13782	5	1	0.0	1.060/1.385	8.0	-90.52+/-1.1	-	Phase=-155deg Bcur=0.76uAmp
  13783	5	1	0.0	1.060/1.385	8.0	-87.92+/-1.1	-	Phase=-160deg Bcur=0.74uAmp
  13784	5	1	0.0	1.060/1.385	8.0	-93.22+/-1.2	-	Phase=-165deg Bcur=0.61uAmp
  13785	5	1	0.0	1.060/1.385	8.0	-93.25+/-1.5	-	Phase=-170deg Bcur=0.38uAmp
  13786	5	1	0.0	1.060/1.385	8.0	-92.20+/-2.2	-	Phase=-175deg Bcur=0.18uAmp
  13787	5	1	0.0	1.060/1.385	8.0	-55.99+/-7.6	-	Phase=-180deg Bcur=0.04uAmp
  13788	5	1	0.0	1.060/1.385	8.0	-79.68+/-2.2	-	Phase=-140deg Bcur=0.28uAmp
  13789	5	1	0.0	1.060/1.385	8.0	-95.29+/-2.2	-	Phase=-175deg Bcur=0.21uAmp
  -	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-185deg Bcur=0.00uAmp
  13790-13794	5	1	0.0	1.060/1.385	8.0	-89.17+/-0.3	1.1	Att=100 Slit=23.7 Phase=-163.8
  13796-13800	5	1	0.0	1.060/1.385	8.0	-	-	Phase scan Att=100 Slit=23.7
  -	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-175deg Bcur=0.0uAmp
  -	5	1	0.0	1.060/1.385	8.0	0	-	Phase=-170deg Bcur=0.0uAmp
  13796	5	1	0.0	1.060/1.385	8.0	-79.08+/-6.2	-	Phase=-168deg Bcur=0.10uAmp
  13797	5	1	0.0	1.060/1.385	8.0	-87.07+/-5.6	-	Phase=-166deg Bcur=0.26uAmp
  13798	5	1	0.0	1.060/1.385	8.0	-91.12+/-2.6	-	Phase=-164deg Bcur=0.53uAmp
  13799	5	1	0.0	1.060/1.385	8.0	-92.02+/-1.9	-	Phase=-162deg Bcur=1.09uAmp
  13800	5	1	0.0	1.060/1.385	8.0	-88.94+/-1.5	-	Phase=-160deg Bcur=1.73uAmp
  -	-	-	0.0	-	-	-	-	Phase=-158deg Bcur=2.30uAmp
  -	-	-	0.0	-	-	-	-	Phase=-156deg Bcur=3.42uAmp
  -	-	-	0.0	-	-	-	-	Phase=-154deg Bcur=4.20uAmp
  -	-	-	0.0	-	-	-	-	Phase=-152deg Bcur=4.80uAmp
  -	-	-	0.0	-	-	-	-	Phase=-150deg Bcur=4.95uAmp
  -	-	-	0.0	-	-	-	-	Phase=-148deg Bcur=4.98uAmp
  -	-	-	0.0	-	-	-	-	Phase=-146deg Bcur=4.71uAmp
  -	-	-	0.0	-	-	-	-	Phase=-144deg Bcur=4.29uAmp
  -	-	-	0.0	-	-	-	-	Phase=-142deg Bcur=3.73uAmp
  -	-	-	0.0	-	-	-	-	Phase=-140deg Bcur=2.55uAmp
  -	-	-	0.0	-	-	-	-	Phase=-138deg Bcur=1.41uAmp
  13801	5	1	0.0	1.060/1.385	8.0	-89.63+/-1.3	-	Phase=-136deg Bcur=0.49uAmp
  13801-13806	5	1	0.0	1.060/1.385	8.0	-89.24+/-1.0	-	Att=100 Slit=23.7 Phase=-136

  The table with detailed information is given here .
  
  For additional information see halog entry 296619 .
  

  PVDIS E-08-011: Parity Violation in Deep Elastic Scattering

  27 October: Noisy MPS signal from Counting House to Moller DAQ is fixed (see 296869).
  03 November: new Helicity Board was installed on injector (see POLOG).
  MPS, QRT, HEL signals after the Helicity board change are shown in 297039.
  

• 04 November 2009 6:25 - 8:20. O. Glamazdin

  The beam energy is 6063.7MeV(accel), 600.0MeV(both Linacs), 67.MeV(injector).
  Injector angle is 74.73^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=65, Slit=19.5. Hall A laser phase=-157.3^o. Fast raster was OFF.
  Beam tuning took 1 hour.
  The measurements prove that it is possible to set Moller settings together with Compton chicane settings at the beam energy 6.068GeV. Beam position was good and stable.
  Two different Moller dipole settings were tested: 388Amp(MCC) and 412Amp(an optimal Moller setting). Moller dipole shielding insertion still is not fully saturated.
  Moller DAQ looks OK after helicity board change and MPS signal adjustment.
  Polarization prediction for Hall A (black color curve) and Hall B (red color curve) vs Wien filter angle is shown on the plot . The prediction is done for Half-Wave Plate OUT, linac energy 600MeV, 5 passes for Hall A/B, and old helicity convention. From the plot the beam polarization in Hall A should be positive. Beam polarization measurement with Moller polarimeter and old helicity convention gives positive sign of the beam polarization. It shows that the helicity convention after helicity board change is the same as it was before.
  

  The theta acceptance is about +/-14^o! and the mean analyzing power is 0.761.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13819-13822	5	1	0.0	1.011/1.380	8.0	85.09+/-0.35	2.4	Thr=300mV B.cur=0.5uAmp
  13823-13824	4	1	0.0	1.617/1.385	8.0	81.27+/-0.41	1.4	B.cur=0.4uAmp
  Average	4-5	1	-	-	8.0	83.48+/-0.27	11.	-

  The table with detailed information is given here .
  Runs 13815-13818 - HV tunning. Moller dipole current was 388Amp (MCC setting).
  Runs 13819-13824 - Moller dipole current was 412Amp (optimal Moller setting).
  
  For additional information see halog entry 294359 .
  

  The final result:
  Pz=(83.48 +/- 0.27(stat) +/- 1.7(syst))%
  The plot is given here .
  

• 06 November 2009 O. Glamazdin

  Beam charge asymmetry test.
  The test was done in parallel with HRS and Compton Runs 13825-13830.
  Beam current 7microA
  Config: test_LED
  Trigger: 13825-13826: LEDsetcoda2
  13827-13830: MPC_LED
  The Moller result is shown on plot .
  The Moller Log Book scan is given here .
  For additional information see halog entry 297779 .
  

• 06 November 2009 18:00 - 21:40. O. Glamazdin

  The beam energy is 6067.45MeV(accel), 600.0MeV(Linac), 67.5MeV(injector).
  Injector angle is 74.73^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=60, Slit=20.5. Fast raster was ON.
  Beam tuning took 40 minutes.
  Beam orbit was perfect (see plot ).
  There was no an energy lock for runs 13831-13847 and 13855-13858.
  There was an energy lock in ARC2 in runs 13848-13851 (see plot ).
  Runs 13825-13830 are LED runs for a beam charge asymmetry test (see halog entry 297779 ).
  Dependence of the beam current of slit parameter at the same laser phase and attenuator was measured and it is shown on a plot .
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.761.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included.
  Cor.Pol - Polarization corrected on the beam polarization precession due to the beam energy fluctuation in Hall A(HALLA:p) (see here )

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Pol. %	Chi2	Comments
  13831-13835	5	1	0.0	1.009/1.392	8.0	88.60+/-0.22	0.5	88.59	1.3	B.cur=0.75uAmp Att=60 Slit=20.5
  13836-13839	4	1	0.0	1.614/1.387	8.0	86.72+/-0.24	3.5	86.88	3.6	B.cur=0.7uAmp Att=60 Slit=20.5
  13840-13843	3	1	0.0	2.247/1.382	8.0	87.29+/-0.21	0.2	87.26	0.2	B.cur=0.5uAmp Att=60 Slit=15.3
  13844-13847	2	1	0.0	2.879/1.385	8.0	87.86+/-0.19	0.7	87.80	0.7	B.cur=0.3uAmp Att=60 Slit=18.1
  13848-13851	5	1	0.0	1.057/1.387	8.0	87.13+/-0.23	0.7	89.59	0.7	B.cur=1.1uAmp Att=68 Slit=17.85
  13855-13858	4	1	0.0	1.614/1.387	8.0	86.16+/-0.22	1.1	86.59	2.7	B.cur=0.95uAmp Att=68 Slit=17.85
  Average	4-5	1	-	-	8.0	87.16+/-0.16	4.6	87.90	4.5	Runs 13831-13839
  Average	2-5	1	-	-	8.0	87.33+/-0.09	2.5	87.76	3.1	Runs 13831-13847

  The table with detailed information is given here .
  For additional information see halog entry 297889 .
  

  The final result:
  Pz=(87.75 +/- 0.1(stat) +/- 2.0(syst))%
  The plot is given here .
  

• 12 November 2009 9:00 - 11:30. O. Glamazdin, A.Saha, FADC team

  The beam energy is 6067.45MeV(accel), 595.97/603.21(North/South Linacs), 67.8MeV(injector).
  Injector angle is 74.73^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=137, Slit=16.02. Fast raster was ON.
  Beam tuning took 1hour.
  Beam position was unstable (see plot ).
  There was an energy lock in ARC2 (see plot and plot ).
  At 11am MCC change parameters of ARC2 energy lock ('increase sumpling' from Crew chieff words).
  For the beam energy parameters in the accelerator see see plot .
  Beam current was 1uAmp to use ARC2 energy lock. Due to that the beam polarization was measured with targets 4 and 5 only.
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.761.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included.
  Cor.Pol - Polarization corrected on the beam polarization precession due to the beam energy fluctuation in Hall A(HALLA:p) (see here )

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Pol. %	Chi2	Comments
  13860-13865	5	1	0.0	1.006/1.380	8.0	90.58+/-0.18	0.9	89.64	1.3	Thr=300mV
  13866-13871	4	1	0.0	1.612/1.389	8.0	87.62+/-0.17	0.7	86.72	3.6	-
  13872-13875	5	1	0.0	1.060/1.382	8.0	89.34+/-0.23	0.8	88.36	1.3	-
  Average	4-5	1	-	-	8.0	89.10+/-0.10	13	88.17	10	-

  The table with detailed information is given here .
  For additional information see halog entry 299208 .
  

  The final result:
  Pz=(88.17 +/- 0.10(stat) +/- 2.0(syst))%
  The plots with raw data and energy correction are given on plot1 and plot2 .
  

• 17 November 2009 10:30 - 19:00. O. Glamazdin, A.Saha, FADC team

  The beam energy is 6067.45MeV(accel), 595.97/603.21(North/South Linacs), 67.75MeV(injector).
  Injector angle is 74.73^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=158, Slit=16.39. Fast raster was ON.
  IOCHLA was frosen. After many reboots the Moller target contlol comes back. There was an energy lock in ARC2 (see plot ).
  For the beam energy parameters in the accelerator see see plot .
  Beam current was 1uAmp to use ARC2 energy lock. Due to that the beam polarization was measured with targets 4 and 5 only.
  Runs 13876-13882 - no target due to iochla crush.

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.761.
  The target angle is 20.5^o.
  The error is statistical only. BPM01Y position is included.
  Cor.Pol - Polarization corrected on the beam polarization precession due to the beam energy fluctuation in Hall A(HALLA:p) (see here )

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Pol. %	Chi2	Comments
  13883-13888	5	1	0.0	1.006/1.389	8.0	-90.71+/-0.18	0.4	-89.43	0.4	Thr=300mV
  13889-13894	4	1	0.0	1.607/1.385	8.0	-88.27+/-0.17	0.3	-88.11	0.3	-
  Average	4-5	1	-	-	8.0	-89.42+/-0.12	9.	-88.73	9	-

  The table with detailed information is given here .
  For additional information see halog entry 300591 .
  

  The final result:
  Pz=(-88.73 +/- 0.12(stat) +/- 2.0(syst))%
  The plot with raw data is given here .
  

• 24 November 2009 15:30 - 22:45. O. Glamazdin, B. Sawatzky

  The beam energy is 6067.7MeV(accel), 595.97/603.21(North/South Linacs), 67.77MeV(injector).
  Injector angle is 74.73^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=73, Slit=27.35. Fast raster was ON.
  16:20 - 17:05 Controlled access to reboot Moller DAQ crates.
  Measurement was done after the laser beam spot move.
  There was an energy lock in ARC2. Beam energy was stable and close to PVDIS running beam energy (see plot ).
  For the beam energy parameters in the accelerator see see plot .
  Beam current was 1uAmp to use ARC2 energy lock. Due to that the beam polarization was measured with targets 4 and 5 only.
  Runs 13916-13918 - Trigger with No Aperture counters - FADC test.
  Runs 13919-13922 - Left234*Right678 - Levchuk-effect test.
  Runs 13923-13926 Slit=16.25 Attenuator=120 - Slit/Attenuator dependence test (Hall A Laser Phase).
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.761.
  The target angle is 20.5^o. Detector threshold=300mV.
  The error is statistical only. BPM01Y position is included.
  Cor.Pol - Polarization corrected on the beam polarization precession due to the beam energy fluctuation in Hall A(HALLA:p) (see here )

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Pol. %	Chi2	Comments
  13902-13907	5	1	0.0	1.026/1.387	8.0	87.25+/-0.18	1.9	87.62	1.9	Att=73, Slit=27.35
  13908-13913	4	1	0.0	1.651/1.382	8.0	87.14+/-0.16	1.5	87.47	1.5	-
  13916-13918	4	1	0.0	1.651/1.382	8.0	85.45+/-0.2	5.0	85.77	5.0	-
  13919-13922	4	1	0.0	1.651/1.382	8.0	87.53+/-0.4	0.9	87.86	0.9	-
  13923-13926	4	1	0.0	1.651/1.382	8.0	86.35+/-0.2	0.2	87.03	0.2	Att=120, Slit=16.25
  Average	4-5	1	-	-	8.0	87.19+/-0.12	1.5	87.54	1.5	13902-13913

  The table with detailed information is given here .
  For additional information see halog entry 302364 .
  

  The final result:
  Pz=(87.54 +/- 0.12(stat) +/- 2.0(syst))%
  The plot with raw data is given here .
  

• 30 November 2009 18:15 - 20:40. O. Glamazdin

  The beam energy is 6067.5MeV(accel), 598.46.97/600.47(North/South Linacs), 67.77MeV(injector).
  Injector angle is 74.73^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=190, Slit=15.7. Fast raster was ON.
  Beam tuning took 30 min!
  Beam current was 1uAmp to use ARC2 energy lock. Due to that the beam polarization was measured with targets 4 and 5 only.
  Beam energy for Moller measurements was about 6066.2MeV (see strip chart ).
  For the beam energy parameters in the accelerator see see plot .
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.761.
  The target angle is 20.5^o. Detector threshold=300mV.
  The error is statistical only. BPM01Y position is included.
  Cor.Pol - Polarization corrected on the beam polarization precession due to the beam energy fluctuation in Hall A(HALLA:p) (see here )

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Pol. %	Chi2	Comments
  13930-13935	5	1	0.0	1.023/1.385	8.0	88.44+/-0.17	1.8	89.46	1.8	-
  13936-13941	4	1	0.0	1.656/1.387	8.0	87.23+/-0.18	2.1	88.24	2.1	-
  13942-13945	4	1	0.0	1.656/1.387	8.0	89.22+/-0.2	0.2	90.25	0.2	Levchuk-test
  Average	4-5	1	-	-	8.0	87.87+/-0.12	4.2	88.88	4.2	13930-13941

  The table with detailed information is given here .
  For additional information see halog entry 303792 .
  

  The final result:
  Pz=(88.88 +/- 0.12(stat) +/- 2.0(syst))%
  The plot with raw data is given here .
  

• 02 December 2009 17:35 - 22:30. O. Glamazdin

  The beam energy is 6067.5MeV(accel), 597.85/601.94(North/South Linacs), 67.34MeV(injector).
  Injector angle is 74.73^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=100, Slit=15.63. Fast raster was ON.
  Beam tuning took 2hours
  HALL A MOLLER ENERGY LOCK was used (see ELOG 1500996 ).
  Beam energy for Moller measurements was about 6066.8MeV (see strip chart ).
  For the beam energy parameters in the accelerator see plot .
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.761.
  The target angle is 20.5^o. Detector threshold=300mV.
  The error is statistical only. BPM01Y position is included.
  Cor.Pol - Polarization corrected on the beam polarization precession due to the beam energy fluctuation in Hall A(HALLA:p) (see here )

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Pol. %	Chi2	Comments
  13947-13953	5	1	0.0	1.021/1.382	8.0	13.25+/-0.2	0.5	10.25	0.5	Wien Filter=-20.20deg
  13954-13959	5	1	0.0	1.021/1.382	8.0	-46.20+/-0.2	0.2	-49.29	0.2	Wien Filter=20.20deg
  13960-13965	5	1	0.0	1.021/1.382	8.0	-90.13+/-0.20	1.8	-90.73	1.8	Wien Filter=74.73deg
  13966-13971	4	1	0.0	1.657/1.385	8.0	-88.62+/-0.19	0.4	-89.11	0.4	-
  Average	4-5	1	-	-	8.0	-89.34+/-0.14	3.2	-89.88	3.2	13960-13971

  The table with detailed information is given here .
  For additional information see halog entry 304208 .
  

  The final result:
  Pz=(-89.88 +/- 0.14(stat) +/- 2.0(syst))%
  The plot with raw data is given here .
  

  Spin Dance Results

  Spin dance results with raw Moller results are shown on plot 1 .
  Spin dance results with Moller results corrected with spin precession are shown on plot 2 .
  

• 10 December 2009 9:20 - 15:05. O. Glamazdin, B. Sawatzky

  The beam energy is 6067.7MeV(accel), 600MeV (Linacs), 67.77MeV(injector).
  Injector angle is 74.73^o, the 1/2 wave plate was OUT.
  Injector Laser attenuation=140, Slit=14.3. Fast raster was ON.
  Beam tuning took 20 min! Thanks to MCC!
  Hall C BSY energy lock was used. Energy was stable and close to PVDIS energy for the beam polarization measurement time. Beam condition (position, current) was very good. Dead time test for new FADC was done (runs 13987-14008).
  Hall A laser phase scan was done (runs 14009-14031). Beam polarization measurement was done for laser phase -152.3^o (PVDIS), -135^o (left edge) and -172^o (right edge).

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.761.
  The target angle is 20.5^o. Detector threshold=300mV.
  The error is statistical only. BPM01Y position is included.

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  13978-13981	5	1	0.0	1.026/1.385	8.0	88.66+/-0.17	2.7	B.cur=0.65uAmp
  13982-13986	4	1	0.0	1.651/1.380	8.0	86.93+/-0.26	3.4	B.cur=0.65uAmp
  13987-13990	3	1	0.0	1.286/1.377	8.0	87.63+/-0.25	4.0	B.cur=0.4uAmp
  13991-13994	2	1	0.0	1.926/1.377	8.0	88.67+/-0.17	4.3	B.cur=0.3uAmp
  13995-13998	5	1	0.0	1.035/1.385	8.0	88.83+/-0.4	0.9	B.cur=0.3uAmp
  13999-14002	5	1	0.0	1.035/1.385	8.0	88.33+/-0.4	1.3	B.cur=1.0uAmp
  14003-14008	5	1	0.0	1.035/1.385	8.0	87.86+/-0.2	0.9	B.cur=1.5uAmp
  14009	5	1	0.0	1.035/1.385	8.0	88.87+/-0.7	-	Phase=-152.3deg
  14010	5	1	0.0	1.035/1.385	8.0	89.03+/-0.7	-	Phase=-150deg
  14011	5	1	0.0	1.035/1.385	8.0	86.73+/-0.7	-	Phase=-145deg
  14012	5	1	0.0	1.035/1.385	8.0	86.61+/-0.8	-	Phase=-140deg
  14013	5	1	0.0	1.035/1.385	8.0	85.79+/-1.1	-	Phase=-135deg
  14014	5	1	0.0	1.035/1.385	8.0	82.89+/-2.7	-	Phase=-134deg
  14015	5	1	0.0	1.035/1.385	8.0	84.15+/-0.5	-	Phase=-135deg
  14016	5	1	0.0	1.035/1.385	8.0	81.16+/-1.5	-	Phase=-133deg
  14017-14020	5	1	0.0	1.035/1.385	8.0	87.16+/-0.3	0.7	Phase=-135deg
  14021	5	1	0.0	1.035/1.385	8.0	0.0	-	Phase=-140deg HallA laser OFF
  14022	5	1	0.0	1.035/1.385	8.0	87.50+/-0.8	-	Phase=-155deg
  14023	5	1	0.0	1.035/1.385	8.0	90.00+/-0.9	-	Phase=-160deg
  14024	5	1	0.0	1.035/1.385	8.0	88.49+/-0.8	-	Phase=-165deg
  14025	5	1	0.0	1.035/1.385	8.0	88.52+/-0.9	-	Phase=-170deg
  14026	5	1	0.0	1.035/1.385	8.0	84.79+/-1.0	-	Phase=-175deg
  14027	5	1	0.0	1.035/1.385	8.0	87.37+/-0.9	-	Phase=-173deg
  14028-14031	5	1	0.0	1.035/1.385	8.0	87.32+/-0.3	3.6	Phase=-172deg
  Average	4-5	1	-	-	8.0	88.14+/-0.14	3.4	13978-13986
  Average	2-5	1	-	-	8.0	88.24+/-0.10	4.3	13978-13994

  The table with detailed information is given here .
  For additional information see halog entry 305990 .
  

  The final result:
  Pz=(88.24 +/- 0.10(stat) +/- 1.7(syst))%
  The plot with raw data is given here .
  

• 16 December 2009 12:50 - 16:30. O.Glamazdin, B.Sawatzky, Zafar Ahmed

  The beam energy is 6067.5MeV(accel), 600MeV(Linacs), 67.34MeV(injector).
  Injector angle is 74.73^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=181, Slit=15.8. Fast raster was ON.
  Beam was not available due to RF problems. We had two controlled access to reboot old Moller DAQ crate and FADC crate.
  Old Moller VME crate was plugged into hareboot26, socket 3. The FADC crate is plugged into the same PDU on socket 1 see halog entry 307501 .
  Beam tuning took ~1 hours. Moller measurement took 2.5 hours.
  ARC2 energy lock was used. Energy was very unstable (see strip chart ).
  For the beam energy parameters in the accelerator see plot .
  Runs 14048-14054 - dead time test for new Moller FADC. Apperture counter was OFF.

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.761.
  The target angle is 20.5^o. Detector threshold=300mV.
  The error is statistical only. BPM01Y position is included.
  Cor.Pol - Polarization corrected on the beam polarization precession due to the beam energy fluctuation in Hall A(HALLA:p) (see here )

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Cor.Pol. %	Chi2	Comments
  14033-14035	5	1	0.0	1.023/1.380	8.0	-89.85+/-0.3	1.0	-91.42	1.0	B.cur=0.7uAmp
  14036-14041	5	1	0.0	1.023/1.380	8.0	-90.06+/-0.2	0.6	-91.63	0.6	B.cur=1.0uAmp
  Average	5	1	-	-	8.0	-91.26+/-0.15	0.7	-91.83	0.7	-
  14042-14047	4	1	0.0	1.653/1.382	8.0	-89.61+/-0.16	1.2	-90.33	1.2	-
  14048	4	1	0.0	1.653/1.382	8.0	-87.26+/-0.3	-	-	-	B.cur=1.0uAmp
  14049	4	1	0.0	1.653/1.382	8.0	-87.85+/-0.3	-	-	-	B.cur=0.6uAmp
  14050	4	1	0.0	1.653/1.382	8.0	-88.21+/-0.4	-	-	-	B.cur=0.3uAmp
  14051	4	1	0.0	1.653/1.382	8.0	-87.18+/-0.3	-	-	-	B.cur=1.2uAmp
  14052	4	1	0.0	1.653/1.382	8.0	-87.85+/-0.6	-	-	-	B.cur=1.6uAmp
  14053	4	1	0.0	1.653/1.382	8.0	-86.20+/-0.3	-	-	-	B.cur=1.9uAmp
  14054	3	1	0.0	1.286/1.377	8.0	-87.85+/-0.3	-	-	-	B.cur=1.9uAmp
  Average	4-5	1	-	-	8.0	-90.49+/-0.11	1.4	-91.13	1.4	14033-14047

  The table with detailed information is given here .
  For additional information see halog entry 307464 .
  

  The final result:
  Pz=(-91.13 +/- 0.11(stat) +/- 2.0(syst))%
  The plot with raw data is given here .
  

• 18 December 2009 12:50 - 17:00. O.Glamazdin

  The beam energy is 4867.43MeV(accel), 600MeV(Linacs), 67.75MeV(injector) - 4 passes.
  Injector angle is 90.47^o, the 1/2 wave plate was IN.
  Injector Laser attenuation=80, Slit=16.5. Fast raster was ON.
  Beam tuning took ~1 hours.
  Hall C BSY energy lock was used.
  For the beam energy parameters in the accelerator see plot .
  

  The theta acceptance is about +/-14^o and the mean analyzing power is 0.761.
  The target angle is 20.5^o. Detector threshold=300mV.
  The error is statistical only. BPM01Y position is included.

  Runs	Target	Type	T.Pos.	Encoder	BOP	Polarization %	Chi2	Comments
  14066-14069	5	1	0.0	1.028/1.389	8.0	-90.59+/-0.24	0.6	B.cur=0.7uAmp
  14070-14073	4	1	0.0	1.661/1.392	8.0	-90.30+/-0.25	0.2	B.cur=0.6uAmp
  14074-14078	3	1	0.0	2.288/1.387	8.0	-89.73+/-0.24	0.6	B.cur=0.4uAmp
  14079-14082	2	1	0.0	1.921/1.382	8.0	-90.76+/-0.19	0.4	B.cur=0.3uAmp
  Average	4-5	1	-	-	8.0	-90.45+/-0.17	0.4	14066-14073
  Average	5	1	-	-	8.0	-90.40+/-0.11	1.2	-

  The table with detailed information is given here .
  
  For additional information see halog entry 307956 .
  

  The final result:
  Pz=-90.40 +/- 0.11(stat) +/- 1.7(syst))%
  The plot with raw data is given here .