Moeller Polarimeter Raw Results Archives 2012

Beam charge asymmetry test.
'An artificial' beam charge asymmetry was measured in paralles with HRS DAQ.
There was no beam in the Hall
Runs 15090-15108 Helicity 30Hz
Runs 15109-15121 Helicity 1kHz

The Moller Log Book scan is given here .
The table with information is given here .
The plots with results are given here:

• no asymmetry,
  
• Asymmetry 1 ,
  
• Asymmetry 2 ,
  
• Asymmetry 3 ,
  
• Asymmetry 4 ,
  

The beam energy is 2253.7MeV(accel), 548.0MeV(linac), 61.65MeV(injector).
Injector angle is -60.85^o (90.0^o, 88.71^o flipper), the 1/2 wave plate was IN.
Fast raster was OFF. Beam was straight. FADC and aperture detectors were not available (see elog 363797 ).
Beam tuning took ~1 hour.
Helicity frequency=960Hz, delay=8windows, pattern=Quartet.
14:55-15:34 (Runs 15193-15201) detector HV tuning.
Runs 15202-15207 beam polarization measurement. Target 2 was used.
Runs 15207-15210 - BCM calibration (Target 2)
Runs 15211-15220 - Q1 quad scan (Q3=1.15kG=47.25A)
Runs 15221-15229 - Q3 quad scan (Q1=2.2kG=106.87A).
Runs 15230-15231 - Beam polarization measurement.
Runs 15232-15237 - Target 4 at 4A BOP(low magnetic field) longitudinal scans.
Runs 15238-15241 - BCM calibration (Target 3).
Runs 15242-15247 beam charge asymmetry test.
Beam energy/current chart is shown on plot .
20:00: Moller target is parked, Moller target movement is unmasked. Moller dipole is OFF, quads settings are restored.

The theta acceptance is about +/-14^o and the mean analyzing power is 0.759.
The target angle is 19.95^o. The error is statistical only. BPM01Y position is included

Runs	Target	B.cur, uA	Encoder	BOP	Polarization %	Chi2	Comments
15202-15207	2	0.11	1.358/2.906	8.0	-79.88+/-0.24	-
15208	2	0.08	1.358/2.906	8.0	-79.10+/-0.69	-	BCM calib.
15209	2	0.06	1.358/2.906	8.0	-76.35+/-0.80	-
15210	2	0.15	1.358/2.906	8.0	-80.35+/-0.54	-
15211-15220	2	0.15	1.358/2.906	8.0	-	-	Q1 scan
15221-15229	2	0.15	1.358/2.906	8.0	-	-	Q3 scan
15230-15231	2	0.15	1.358/2.906	8.0	-80.39+/-0.39	-
15332	4	0.15	1.360/-	4.0	-80.36+/-0.75	-	Long. scan
15333	4	0.15	1.360/-	4.0	-80.06+/-0.76	-	Long. scan
15334	4	0.15	1.360/-	4.0	-80.47+/-0.76	-	Long. scan
15335	4	0.15	1.360/-	4.0	-80.07+/-0.77	-	Long. scan
15336	4	0.15	1.360/-	4.0	-79.40+/-0.75	-	Long. scan
15337	4	0.15	1.360/-	4.0	-78.49+/-0.70	-	Long. scan
15238-15239	3	0.15	1.387/2.283	8.0	-80.50+/-0.45	-	-
15240	3	0.075	1.387/2.283	8.0	-77.15+/-0.80	-	BCM calib.
15241	3	0.06	1.387/2.283	8.0	-75.88+/-0.88	-	-
Average	2	-	-	-	-79.91+/-0.20	0.8	Target 2

The Moller Log Book scan is given here .
The table with detailed information is given here and here .
The quads scan results are presented on plot .
Moller results for the beam charge asymetry test are: Set1 , Set2 and Set3 .
Full information about the beam charge asymmetry test is given in halog 363824 .
For additional information see halog entry 363148 .
The final results:
Pz=(-79.91 +/- 0.20(stat) +/- 1.7(syst))%
The plots are given here png , ps .

The beam energy is 2253.7MeV(accel), 548.0MeV(linac), 61.65MeV(injector).
Injector angle is -59.63^o (90.0^o, 88.72^o flipper)
Runs 15252-15274 IHWP wave plate was IN. Passive HWP was IN
Runs 15275-15292 IHWP wave plate was OUT.
Fast raster was OFF. Beam was straight.
Helicity frequency=960Hz, delay=8windows, pattern=Quartet.
15:00-15:55 (Runs 15193-15201) detector HV tuning.
Runs 15259-15270 - Beam polarization measurement with IHWP wave plate IN. Target 2 was used.
Runs 15271-15274 - Bleed-through measurement, Hall A laser was OFF, Slit=15.15
Runs 15275-15282 - Beam polarization measurement with IHWP wave plate OUT.
Runs 15283-15286 - Bleed-through measurement, Hall A laser was OFF, Slit was open=-1.0
Runs 15288-15291 - Target 4 longitudinal scan (BOP=3A).
Run 15292 - Al target 4 (non polarized).
18:20 Moller target is parked, Moller target movement is unmasked. Moller dipole is OFF, quads settings are restored.

The theta acceptance is about +/-14^o and the mean analyzing power is 0.759.
The target angle is 19.95^o. The error is statistical only. BPM01Y position is included

Runs	Target	B.cur, uA	Encoder	BOP	Polarization %	Chi2	Comments
15259-15270	2	0.1	0.808/2.906	8.0	-80.43+/-0.46	0.9	-
15271-15274	2	0.0	0.808/2.906	8.0	2.5+/-44	1.1	Hall A laser OFF, Slit=15.15
15275-15282	2	0.1	0.808/2.906	8.0	+79.89+/-0.58	0.9	-
15283-15286	2	0.0	0.808/2.906	8.0	-2.1+/-3.0	0.2	Hall A laser OFF, Slit=-1.0
15287	4	0.1	1.668/0.259	8.0	-68.51+/-0.33	-	-
15388-15291	4	0.1	1.668/-	3.0	-	-	Long. scan
15292	6	0.1	-	8.0	-	-	Asym=0.16+/-0.54
Average	2	-	-	8.0	80.22+/-0.36	0.95	Both IHWP

The Moller Log Book scan is given here .
The table with detailed information is given here and here .
Plots with bleed-through measurement results are: Slit=15.15 and Slit=-1.0
For additional information see halog entry 368402 .
The final results:
Pz=(-80.43 +/- 0.46(stat) +/- 1.7(syst))% IHWP=IN
Pz=(+79.89 +/- 0.58(stat) +/- 1.7(syst))% IHWP=OUT
Pz=(80.22 +/- 0.36(stat) +/- 1.7(syst))% Average
The plots are given here IHWP=IN , IHWP=OUT , Average .

The beam energy is 1711.MeV(accel), 416.MeV(linac), 46.69MeV(injector).
Injector angle is -49.60^o (90.0^o, 88.71^o flipper)
IHWP wave plate was IN. Passive HWP was IN
Fast and slow rasters were OFF. Beam was straight.
Helicity frequency=960Hz, delay=8windows, pattern=Quartet.
The beam tunning Moller took ~1 hour.
Runs 15295-15303 - detector HV tuning.
Runs 15304-15313 - Beam polarization measurement. Target 2 was used.
Runs 15314-15317 - Bleed-through measurement, Hall A laser was OFF, Slit was open=-1.0
Runs 15318-15327 - Q1 quad scan.
Runs 15328-15335 - Q3 quad scan.
23:55 Moller target is parked, Moller target movement is unmasked. Moller dipole is OFF, quads settings are restored.

The theta acceptance is about +/-14^o and the mean analyzing power is 0.754.
The target angle is 19.95^o. The error is statistical only. BPM01Y position is included

Runs	Target	B.cur, uA	Encoder	BOP	Polarization %	Chi2	Comments
15304-15313	2	0.1	0.800/2.921	8.0	-88.52+/-0.30	1.3	-
15314-15317	2	0.0	0.800/2.921	8.0	-3.3+/-2.6	0.6	Hall A laser OFF, Slit=-1.0

The Moller Log Book scan is given here .
The table with detailed information is given here and here .
The plot with bleed-through measurement results is shown here .
The strip chart for the Moller measurement time is given here .
The plot is illustrated possible beam polarization correction for two different beam energies.
For additional information see halog entry 372508 .
The final results:
Pz=(-88.52 +/- 0.3(stat) +/- 1.7(syst))%
The plot with results is given here .

The beam energy is 1158MeV(accel), 548.MeV(linac), 61.65MeV(injector).
Injector angle is -70.0^o (90.0^o, -91.947^o flipper)
IHWP wave plate was OUT. Passive HWP was IN
Fast and slow rasters were OFF. Beam was straight.
Helicity frequency=960Hz, delay=8windows, pattern=Quartet.
The beam tunning Moller took ~1.5 hour.
Runs 15338-15353 - Beam polarization measurement. Target 2 was used.
Runs 15354-15357 - Bleed-through measurement, Hall A laser was OFF, Slit was 14.0 (as experiment running).
Runs 15358-15369 - Q1 quad scan.
Runs 15370-15381 - Q3 quad scan.
23:55 Moller target is parked, Moller target movement is unmasked. Moller dipole is OFF, quads settings are restored.

The theta acceptance is about +/-14^o and the mean analyzing power is 0.763.
The target angle is 19.95^o. The error is statistical only. BPM01Y position is included

Runs	Target	B.cur, uA	Encoder	BOP	Polarization %	Chi2	Comments
15338-15353	2	0.1	0.800/2.918	8.0	89.72+/-0.29	0.4	-
15314-15317	2	0.0	0.800/2.918	8.0	-15+/-87	-	Slit=14.0

The Moller Log Book scan is given here .
The table with detailed information is given here and here .
The plot with bleed-through measurement results is shown here . For these beam energy, slit, helicity frequency
and bleed-through the number of events per helicity window is ~1. The polarization measurement is senseless.
The strip chart for the Moller measurement time is given here .
For additional information see halog entry 378077 .
Quads scan result (comparizon with GEANT) is given here .
The final results:
Pz=(89.72 +/- 0.29(stat) +/- 1.7(syst))%
The plot with results is given here .

Spin Dance measurement

The theta acceptance is about +/-14^o and the mean analyzing power is 0.759.
The target angle is 19.95^o. The error is statistical only. BPM01Y position is included

Runs	Target	B.cur, nA	Wien angle, o	BOP	Polarization %	Chi2	Comments
15382-15387	2	0.1	-60.85	8.0	-83.47+/-0.57	0.55	IHWP=OUT PAS=OUT
15388-15393	2	0.1	-60.85	8.0	-81.82+/-0.59	1.45	IHWP=OUT PAS=IN
15382-15393	2	0.1	-60.85	8.0	-82.67+/-0.41	1.28	IHWP=OUT Average
15394-15401	2	0.1	-75.0	8.0	-86.32+/-0.55	0.36	IHWP=OUT PAS=IN
15402-15408	2	0.1	-20.0	8.0	-43.82+/-0.51	0.81	IHWP=OUT PAS=IN
15409-15417	2	0.1	+20.0	8.0	+17.23+/-0.51	0.45	IHWP=OUT PAS=IN
15419-15430	2	0.1	-60.2	8.0	+80.40+/-0.45	1.0	IHWP=IN PAS=OUT
15431-15434	2	0.0	-70.0	8.0	-14+/-102	-	Bleed-through Slit=-1.0

The Moller Log Book scan is given here .
The table with detailed information is given here and here .
The plot with bleed-through measurement results is shown here . For these beam energy, slit, helicity frequency
and bleed-through the number of events per helicity window is ~1. The polarization measurement is senseless.
For additional information see halog entry 382205 .
Spin dance result is given here .
The plots with Moller results for each Wien filter angle are given below: -60.85 ^o(1),
-60.85 ^o(2), -60.85 ^o(average), -75.0 ^o, -20.0 ^o, +20.0 ^o, -60.20 ^o,

The beam energy is 3349.65V(accel), 548.MeV(linac), 61.65MeV(injector).
Injector angle at the beginning was -60.20^o (90.0^o, -91.947^o flipper)
Fast and slow rasters were OFF. Beam was straight.
Helicity frequency=960Hz, delay=8windows, pattern=Quartet.
The beam tunning Moller took ~1 hour.
Runs 15438-15467: IHWP=IN PAS=OUT
Runs 15438-15440: detector HV tune
Runs 15468-15501: IHWP=OUT PAS=IN
Runs 15469-15473: Bleed-through measurement, Hall A laser was OFF. Full open slit (-1).
Runs 15474-15489: Q1 scan (Q3=72.92A)
Runs 15490-15501: Q3 scan (Q1=96.82A)

The theta acceptance is about +/-14^o and the mean analyzing power is 0.753.
The target angle is 19.95^o. The error is statistical only. BPM01Y position is included

Runs	Target	B.cur, nA	BOP	Polarization %	Chi2	Comments
15441-15468	2	0.05	8.0	83.59+/-0.31	0.74
15469-15473	2	0.0	8.0	-1.0+/-3.8	0.1	Bleed-through Slit=-1.0

The Moller Log Book scan is given here .
The table with detailed information is given here and here .
The plot with bleed-through measurement results is shown here . For additional information see halog entry 385183 .
Plot with bleed-through measurement results is given on png and ps .
The final result is:
Pz=(83.59 +/- 0.31(stat) +/- 1.7(syst))%
The plots are given here png , ps .