Difference between revisions of "E08-014 Run Plan"
From Hall A Wiki
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Revision as of 18:28, 20 April 2011
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 Calibration 2nd phase (Starting on April 21)
- 6 2nd phase: Helium-3 and Calcium running (Starting on April 21)
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=2.6373GeV/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 |
4He (#1) Carbon (#2) 2H (#3) BeO (#4) Optics (#5) |
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 |
- 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 |
4He (#3) Carbon (#2) 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=1066.4A, Iread=1070.3A) | 21.0 | 3N SRC | 1.31-1.41 |
4He 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 |
4He Carbon 2H BeO 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 |
4He Carbon Dummy-4cm |
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)
Calibration 2nd phase (Starting on April 21)
- Boiling/rate-dependence study on 3He and 12C (4 hours)
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.
| 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=1066.4A, Iread=1070.3A) | 21.0 | 3N SRC | 1.31-1.41 |
3He Carbon Dummy-20cm |
95 95 40 |
1 1 1 |
260000 192000 n/a |
3.0
0.3
1.0
|
4.3 |
? ? ? |
| 3.1 | 3.356 | 2.905 (RQ3=2.5484GeV/c, Iset=1017.74A, Iread=1014.04A) | 21.0 | 2N SRC | 1.25-1.34 |
3He Carbon Ca-40 Ca-48 Dummy-20cm BeO optics |
95 95 40 40 40 5 5 |
1 1 1 1 1 1 1 |
3600000 3000000 2800000 2800000 n/a n/a n/a |
2.5
0.6
1.0
1.0
1.0
10-15min
10-15min
|
6.1 + 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5.2 | 3.356 | 2.995 (RQ3=2.6373GeV/c, Iset=1049.2A, Iread=1045.4A) | 25.0 | 3N SRC | 1.82-2.00 |
3He (#1) Carbon (#3) Dummy-20cm (#2) |
95 95 40 |
1 1 1 |
67000 65000 n/a |
33.0
3.0
12.0
|
48.0 |
? ? ? |
| 5.1 | 3.356 | 2.795 (RQ3=2.4519GeV/c, Iset=979.17A, Iread=975.63A) | 25.0 | 2N SRC | 1.70-1.82 |
3He (#1) Carbon (#5) Ca-40 (#2) Ca-48 (#3) Dummy-20cm (#4) |
95 95 40 40 40 |
1 1 1 1 1 |
500000 490000 480000 480000 n/a |
6.0
0.8
2.5
2.6
2.0
|
13.9 |
? ? ? ? ? |
| 5.0 | 3.356 | 2.505 (RQ3=2.1975GeV/c, Iset=877.55A, Iread=874.43A) | 25.0 | QE | 1.52-1.63 |
4He (#1) Carbon (#5) Ca-40 (#2) Ca-48 (#3) dummy-20cm (#4) BeO (#6) Optics (#7) |
95 95 40 40 40 5 5 |
1 1 1 1 1 1 1 |
n/a n/a n/a n/a n/a n/a n/a |
1
1
1
1
20min
10-15min
10-15min
|
4.4 + 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7 | 3.356 | 2.835 (RQ3=2.4870GeV/c, Iset=????A, Iread=????A) | 29.0 | 3N SRC | 2.30-2.47 |
3He Carbon Dummy-20cm BeO Optics |
95 95 40 5 5 |
1 1 1 1 1 |
600000 530000 n/a n/a n/a |
91.0
8.5
32.0
10-15min
10-15min
|
131.5 + 0.5 |
? ? ? n/a n/a |
