E08-014 Run Plan
From Hall A Wiki
Contents
- 1 Kinematics Plot
- 2 Reconfiguration, Commissioning and Calibration 1st phase (Starting on April 15 at 9:30am)
- 3 1st phase: Helium-4, Deuterium and Carbon running
- 4 Target switch: 3 days down (Starting on April 19 at 8am)
- 5 2nd phase: Helium-3 and Calcium running (Starting on April 21)
- 6 Calibrations still needed
Kinematics Plot
Reconfiguration, Commissioning and Calibration 1st phase (Starting on April 15 at 9:30am)
- Energy change: 4 pass --> 3 pass (2-3 hours) 1) Change Right HRS polarity to negative 2) Left & Right HRS at kin 5.2: theta=25deg, Po=2.995GeV/c (RQ3=2.6273GeV/c) - Set up for maximum current (95 uA) - BCM calibration (1 hour)
1st phase: Helium-4, Deuterium and Carbon running
The 4He and 2H might not be ready for beam simultaneously. Therefore, the plan is to take data on 4He, then move to carbon. During the data taking on carbon, lower the cryo-load on 4He and prepare 2H for beam (it should take 5 min). Take data on 2H. Then on optics. Then switch kinematics and do the same thing in reverse order: Optics --> 2H --> Carbon --> 4He.
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tight cuts | Loose cuts | ||||||||||||
5.2 | 3.356 | 2.995 (RQ3=2.6273GeV/c, Iset=1049.2A, Iread=1045.4A) | 25.0 | 3N SRC | 1.82-2.00 |
4He (#1) Carbon (#2) |
95 95 |
1 1 |
64500 64200 |
12.6
4.2
|
16.8 |
61970 94837 |
130001 ? |
5.0 | 3.356 | 2.505 (RQ3=2.1975GeV/c, Iset=877.55A, Iread=874.43A) | 25.0 | QE | 1.52-1.63 |
1, 4He 2, Carbon 3, 2H 4, BeO 5, Optics 6, Other |
95 95 60 5 5 |
1 1 1 1 1 |
n/a n/a n/a n/a n/a |
1
1
1
10-15min
10-15min
|
3 + 0.5 |
n/a n/a n/a n/a n/a |
? ? ? n/a n/a |
- Rate/Boiling study on 4He, deuterium and carbon (4 hours)
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tight cuts | Loose cuts | ||||||||||||
5.1 | 3.356 | 2.795 (RQ3=2.4519GeV/c, Iset=979.17A, Iread=975.63A) | 25.0 | 2N SRC | 1.70-1.82 |
a, 4He (#3) b, Carbon (#2) c, 2H (#1) |
95 95 60 |
1 1 1 |
482900 475400 553200 |
2.9
1.1
2.9
|
6.9 |
342000 833000 600000 |
? ? ? |
- Request Escorted Controlled Access for HRS motion
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tight cuts | Loose cuts | ||||||||||||
3.2 | 3.356 | 3.055 (RQ3=2.6800GeV/c, Iset=1070.3A, Iread=1066.4A) | 21.0 | 3N SRC | 1.31-1.41 |
a) 4He b) Carbon |
95 95 |
1 1 |
213200 204000 |
0.8
0.3
|
1.1 |
236000 250000 |
? ? |
3.1 | 3.356 | 2.905 (RQ3=2.5484GeV/c, Iset=1017.74A, Iread=1014.04A) | 21.0 | 2N SRC | 1.25-1.34 |
a. 4He b. Carbon c. 2H d. BeO e. optics |
95 95 45 5 5 |
1 1 1 1 1 |
1000000 1000000 1000000 n/a n/a |
2.0
1.0
2.0
10-15min
10-15min
|
2.0 + 0.5 |
1200000 2000000 1255000 n/a n/a |
? ? ? n/a n/a |
- BCM calibration - Request Escorted Controlled Access for HRS motion
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tight cuts | Loose cuts | ||||||||||||
4.2 | 3.356 | 3.035 (RQ3=2.6624GeV/c, Iset=1063.22A, Iread=1059.38A) | 23.0 | 3N SRC | 1.56-1.68 |
1) 4He 2) Carbon 3) Dummy-4cm 4) BCM calib |
95 95 40 |
1 1 1 |
62400 60900 60000 |
1.6
0.6
1.5
|
3.7 |
41700 41000 6500 |
? ? ? |
4.0 | 3.356 | 2.600 (RQ3=2.2808GeV/c, I=????A) | 23.0 | QE | 1.34-1.44 |
. optics |
5 |
1 |
n/a |
? |
? |
n/a |
n/a |
4.2 | 3.356 | 3.035 (RQ3=2.6624GeV/c, Iset=1063.22A, Iread=1059.38A) | 23.0 | 3N SRC | 1.56-1.68 |
. Dummy-4cm |
10 |
1 |
n/a |
till end
|
n/a |
13900 |
? |
Target switch: 3 days down (Starting on April 19 at 8am)
2nd phase: Helium-3 and Calcium running (Starting on April 21)
The time listed in red is the total time needed assuming both HRSs running.
- Establish high current on 3He. Desired current is 120uA. If beam not stable or the target cannot handle 120uA, go down in beam current till stable conditions.
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated |
---|---|---|---|---|---|---|---|---|---|---|---|---|
5.2 | 3.356 | 2.995 (RQ3=2.6273GeV/c, Iset=1049.2A, Iread=1045.4A) | 25.0 | 3N SRC | 1.82-2.00 |
1' 3He-20cm (#1) 2' Carbon-5mm (#3) 3' Dummy-20cm (#2) |
120 (raster 3x3) 95 (raster 3x3) 40 (raster 3x3) |
1 1 1 |
67000 65000 n/a |
33.0
3.0
12.0
|
48.0 |
77000 112000 n/a |
5.1 | 3.356 | 2.795 (RQ3=2.4519GeV/c, Iset=979.17A, Iread=975.63A) | 25.0 | 2N SRC | 1.70-1.82 |
1; 3He-20cm (#1) 2; Carbon-5mm (#2) 3; Ca-40 (nat.)(#4) 4; Ca-48 (#5) 5; Dummy-20cm (#3) |
120 (raster 3x3) 95 (raster 3x3) 40 (raster 4x4) 40 (raster 4x4) 40 (raster 3x3) |
1 1 1 1 1 |
500000 490000 480000 480000 n/a |
6.0
0.8
2.5
2.6
2.0
|
13.9 |
533000 557000 454000 522000 n/a |
5.0 | 3.356 | 2.505 (RQ3=2.1975GeV/c, Iset=877.55A, Iread=874.43A) | 25.0 | QE | 1.52-1.63 |
1" **3He-20cm (#1) 2" **Carbon-5mm (#2) 3" Ca-40 (nat.) (#5) 4" Ca-48 (#6) 5" dummy-20cm (#3) 6" dummy-10cm (#4) 7" BeO (#7) 8" Optics (#8) |
120 (raster 3x3) 95 (raster 3x3) 40 (raster 4x4) 40 (raster 4x4) 40 (raster 3x3) 40 (raster 3x3) 5 (raster 3x3) 5 (raster 3x3) |
1 1 1 1 1 1 1 1 |
n/a n/a n/a n/a n/a n/a n/a n/a n/a |
1
0.5
1
1
20min
20min
10-15min
10-15min
|
4.5 + 0.5 |
n/a n/a n/a n/a n/a n/a n/a n/a |
** Boiling/rate-dependence study on 3He and 12C combined with Kin# 5.0 Detail - Calcium position-dependence scan
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated |
---|---|---|---|---|---|---|---|---|---|---|---|---|
3.2 | 3.356 | 3.055 (RQ3=2.6800GeV/c, Iset=1070.3A, Iread=1066.4A) | 21.0 | 3N SRC | 1.31-1.41 |
3He-20cm Carbon-5mm Ca-40 Ca-48 Dummy-20cm |
120 (raster 3x3) 95 (raster 3x3) 40(raster 4x4) 40(raster 4x4) 40 (raster 3x3) |
1 1 1 1 1 |
260000 192000 186000 180000 n/a |
3.0
0.3
0.8
0.8
1.0
|
6.0 |
203000 203000 183000 183000 n/a |
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated |
---|---|---|---|---|---|---|---|---|---|---|---|---|
6.5 | 3.356 | 2.845 (RQ3=2.4957GeV/c, Iset=996.65A, Iread=993.04A) | 28.0 | 3N SRC | 2.16-2.31 |
1 3He-20cm 2 Carbon-5mm 3 Dummy-20cm 4 BeO 5 Optics 6 Cosmic |
120 (raster 3x3) 95 (raster 3x3) 40 (raster 3x3) 5 (raster 3x3) 5 (raster 3x3) |
1 1 1 1 1 |
164000 160000 n/a n/a n/a |
91.0
8.5
32.0
10-15min
10-15min
|
131.5 + 0.5 |
140k 170K ~15 hrs n/a n/a |
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated |
---|---|---|---|---|---|---|---|---|---|---|---|---|
3.2b | 3.356 | 3.055 (RQ3=2.6800GeV/c, Iset=1070.3A, Iread=1066.4A) | 21.0 | 3N SRC [TIMES ASSUME LEFT ARM ONLY] | 1.31-1.41 |
3He-20cm Dummy-20cm |
120 (raster 3x3) 40 (raster 3x3) |
1 1 |
60000 n/a |
1.2
15min
|
1.5 |
?? n/a |
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated |
---|---|---|---|---|---|---|---|---|---|---|---|---|
3.1 | 3.356 | 2.905 (RQ3=2.5484GeV/c, Iset=1017.74A, Iread=1014.04A) | 21.0 | 2N SRC [TIMES ASSUME HRS-L ONLY] | 1.25-1.34 |
3- 3He-20cm 4- Carbon-5mm 5- Ca-40 6- Ca-48 7- Dummy-20cm 1- BeO 2- optics |
120 (raster 3x3) 95 (raster 3x3) 40 (raster 4x4) 40 (raster 4x4) 40 (raster 3x3) 5 (raster 3x3) 5 (raster 3x3) |
1 1 1 1 1 1 1 |
3600000 3000000 2800000 2800000 n/a n/a n/a |
5.0
1.2
2.0
2.0
1.5
10-15min
10-15min
|
11.7 + 0.5 |
3,350,000 3,480,000 2,920,000 1,100,000 69mins n/a n/a |
BCM Calibration on 05/03/2011 [1]
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated |
---|---|---|---|---|---|---|---|---|---|---|---|---|
4.2 | 3.356 | 3.035 (RQ3=2.6624GeV/c, Iset=1063.22A, Iread=1059.38A) | 23.0 | 3N SRC | 1.56-1.68 |
1` 3He-20cm 2` Carbon-5mm 3` Ca-40 4` Ca-48 5` Dummy-20cm 6` Dummy-10cm |
120 (raster 3x3) 95 (raster 3x3) 40 (raster 4x4) 40 (raster 4x4) 40 (raster 3x3) 40 (raster 3x3) |
1 1 1 1 1 1 |
69000 63000 58000 58000 n/a 65000 |
6.0
0.6
1.6
1.7
1.5
1.5
|
14.0 |
29000 74000 62500 60500 96mins 65000 |
BPM Calibration on 05/04/2011 [2]
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated |
---|---|---|---|---|---|---|---|---|---|---|---|---|
4.1 | 3.356 | 2.855 (RQ3=2.5045GeV/c, Iset=1000.21A, Iread=996.58A) | 23.0 | 2N SRC | 1.47-1.58 |
1. 3He-20cm 2. Carbon-5mm 3. Ca-40 4. Ca-48 5. Dummy-20cm 6. Dummy-10cm 7. BeO 8. optics |
120 (raster 3x3) 120 (raster 3x3) 40 (raster 4x4) 40 (raster 4x4) 40 (raster 3x3) 40 (raster 3x3) 5 (raster 3x3) 5 (raster 3x3) |
1 1 1 1 1 1 1 1 |
870000 760000 780000 770000 n/a 800000 n/a n/a |
3.0
0.4
1.3
1.3
1.0
1.5
10-15min
10-15min
|
7.0 + 0.5 |
? ? ? ? ? ? n/a n/a |
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated |
---|---|---|---|---|---|---|---|---|---|---|---|---|
5.05 | 3.356 | 2.650 (RQ3=2.3247GeV/c, Iset=????A, Iread=????A) | 25.0 | QE-to-2NSRC | 1.66 |
1.1 3He-20cm (#1) 2.1 Carbon-5mm (#2) 3.1 Ca-40 (nat.)(#4) 4.1 Ca-48 (#5) 5.1 Dummy-20cm (#3) |
120 (raster 3x3) 95 (raster 3x3) 40 (raster 4x4) 40 (raster 4x4) 40 (raster 3x3) |
1 1 1 1 1 |
500000 500000 500000 500000 n/a |
2.0
0.5
1.5
1.5
1.0
|
6.5 |
2609K 500K 600K 507K 51mins |
Insert right arm sieve during beam studies on thursday (will need evening access to remove sieve slit)
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated |
---|---|---|---|---|---|---|---|---|---|---|---|---|
5.0 | 3.356 | 2.505 with sieve (RQ3=2.1975GeV/c, Iset=877.55A, Iread=874.43A) | 25.0 | QE
(optics study) |
1.52-1.63 |
. optics |
5 (raster off) 5 (raster off) |
1 1 |
n/a n/a |
? ? |
? |
n/a n/a |
5.2 | 3.356 | 2.995 (RQ3=2.6273GeV/c, Iset=1049.2A, Iread=1045.4A) | 25.0 | 3N SRC | 1.82-2.00 |
1' 3He-20cm (#1) 3' Dummy-20cm (#2) 2' Carbon-5mm (#3) 4' Ca40 5' Ca48 |
120 (raster 3x3) 40 (raster 3x3) |
1 1 |
40000 n/a |
12.0
3.0
|
15.0 |
? n/a |
- Change left arm to kin 3.1 and right arm to kin 6.5
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated |
---|---|---|---|---|---|---|---|---|---|---|---|---|
3.1 | 3.356 | 2.905 (RQ3=2.5484GeV/c, Iset=1017.74A, Iread=1014.04A) | 21.0 | 2N SRC
[TIMES ASSUME HRS-L ONLY]
|
1.25-1.34 |
5- Ca-40 6- Ca-48 1- BeO 2- optics |
40 (raster 4x4) 40 (raster 4x4) 5 (raster 3x3) 5 (raster 3x3) |
1 1 1 1 |
1M 3M n/a n/a |
1.0
2.0
10-15min
10-15min
|
3.0 + 0.5 |
1M 3M n/a n/a |
- Change left arm to kin 6.5
Kin | Ein [GeV] | Po (GeV) | Theta | x-region | Q^2-range | Target | I (uA) | prescale | # good evts | time(hrs) | total time | # evts accumulated |
---|---|---|---|---|---|---|---|---|---|---|---|---|
6.5 | 3.356 | 2.845 (RQ3=2.4957GeV/c, Iset=996.65A, Iread=993.04A) | 28.0 | 3N SRC | 2.16-2.31 |
1 3He-20cm 2 Carbon-5mm 3 Dummy-20cm 4 BeO 5 Optics |
120 (raster 3x3) 95 (raster 3x3) 40 (raster 3x3) 5 (raster 3x3) 5 (raster 3x3) |
1 1 1 1 1 |
30000 15000 n/a n/a n/a |
20.0
2.0
2.0
10-15min
10-15min
|
24 + 0.5 |
31000 16000 2 hrs n/a n/a |
Calibrations still needed
- BCM calibration (Take currents of 120, 100, 80, 60, 40, 20, 10, 5, 2uA) ***DONE*** (5/3/11, swing shift)
- Bull's eye scan ***DONE*** (5/4/11, day shift)
- Beam energy measurement ***CANCELLED***
- Right arm Optics --> sieve in ***DONE***(05/05/2011 swing shift)
=== Experiment stops here ===