Reconfiguration and Commissioning
- Starting on April 18 at 8am:
- Energy change: 4 pass --> 3 pass (8 hours)
- change DAQ to two independent DAQs
- initial checkout (8 hours)
- Beam energy measurement (2 hours)
- BCM calibration (1 hour)
- Boiling study on 4He and deuterium (2x4 hours)
- Rate-dependence tests (4 hours)
1st phase: Helium-4 and Deuterium running
| Kin
|
Ein [GeV]
|
Po (GeV)
|
Theta
|
x-region
|
Q^2-range
|
Target
|
Beam current (uA)
|
time(hrs)
|
total time
|
| 1
|
3.356
|
3.155
|
16
|
2N + 3N SRC
|
0.79-0.85
|
4He
Carbon
2H
dummy
|
84
100
60
40
|
1.6
0.8
4.1
?
|
?
|
| 2
|
3.356
|
3.110
|
18.5
|
2N + 3N SRC
|
1.04-1.12
|
4He
Carbon
2H
dummy
|
84
100
60
40
|
2.1
0.8
3.7
?
|
?
|
| 3.1
|
3.356
|
2.905
|
21.0
|
2N SRC
|
1.25-1.34
|
4He
Carbon
2H
dummy
|
100
84
60
40
|
2.0
1.1
5.4
?
|
?
|
| 3.2
|
3.356
|
3.055
|
21.0
|
3N SRC
|
1.31-1.41
|
4He
Carbon
dummy
|
84
100
40
|
1.3
1.0
?
|
?
|
| 4.1
|
3.356
|
2.855
|
23.0
|
2N SRC
|
1.47-1.58
|
4He
Carbon
2H
dummy
|
84
100
60
40
|
1.7
1.4
4.4
?
|
?
|
| 4.2
|
3.356
|
3.035
|
23.0
|
3N SRC
|
1.56-1.68
|
4He
Carbon
dummy
|
84
100
40
|
2.6
2.0
?
|
?
|
| 5.1
|
3.356
|
2.795
|
25.0
|
2N SRC
|
1.70-1.82
|
4He
Carbon
2H
dummy
|
84
100
60
40
|
3.4
2.8
8.4
?
|
?
|
| 5.2
|
3.356
|
2.995
|
25.0
|
3N SRC
|
1.82-2.00
|
4He
Carbon
dummy
|
84
100
40
|
5.2
4.1
?
|
?
|
| 6
|
3.356
|
2.885
|
27.0
|
3N SRC
|
2.04-2.18
|
4He
Carbon
dummy
|
84
100
40
|
10.4
8.2
?
|
?
|
| 7
|
3.356
|
2.835
|
29.0
|
3N SRC
|
2.30-2.47
|
4He
Carbon
dummy
|
84
100
40
|
18.1
14.3
?
|
?
|
| 8
|
3.356
|
2.790
|
31.0
|
3N SRC
|
2.58-2.77
|
4He
Carbon
dummy
|
84
100
40
|
18.1
14.4
?
|
?
|
Target switch: 3 days down
- Starting on April ? at 8am:
- Boiling study on 3He (4 hours)
- Rate-dependence tests (4 hours)
- BCM calibration (1hour)
2nd phase: Helium-3 and Calcium running
| Kin
|
Ein [GeV]
|
Po (GeV)
|
Theta
|
x-region
|
Q^2-range
|
Target
|
Beam current (uA)
|
time(hrs)
|
total time
|
| 1
|
3.356
|
3.155
|
16
|
2N + 3N SRC
|
0.79-0.85
|
3He
Carbon
Ca-40
Ca-48
dummy
|
84
100
40
40
40
|
3.0
0.8
1.3
1.3
?
|
?
|
| 2
|
3.356
|
3.110
|
18.5
|
2N + 3N SRC
|
1.04-1.12
|
3He
Carbon
Ca-40
Ca-48
dummy
|
84
100
40
40
40
|
3.6
0.8
2.2
2.3
?
|
?
|
| 3.1
|
3.356
|
2.905
|
21.0
|
2N SRC
|
1.25-1.34
|
3He
Carbon
Ca-40
Ca-48
dummy
|
84
100
40
40
40
|
3.6
1.1
4.1
1.8
1.9
?
|
?
|
| 3.2
|
3.356
|
3.055
|
21.0
|
3N SRC
|
1.31-1.41
|
3He
Carbon
Ca-40
Ca-48
dummy
|
84
100
40
40
40
|
4.5
1.0
2.8
2.9
?
|
?
|
| 4.1
|
3.356
|
2.855
|
23.0
|
2N SRC
|
1.47-1.58
|
3He
Carbon
Ca-40
Ca-48
dummy
|
84
100
40
40
40
|
4.5
1.4
4.5
4.7
?
|
?
|
| 4.2
|
3.356
|
3.035
|
23.0
|
3N SRC
|
1.56-1.68
|
3He
Carbon
Ca-40
Ca-48
dummy
|
84
100
40
40
40
|
9.0
2.0
5.5
5.7
?
|
?
|
| 5.1
|
3.356
|
2.795
|
25.0
|
2N SRC
|
1.70-1.82
|
3He
Carbon
Ca-40
Ca-48
dummy
|
84
100
40
40
40
|
9.0
2.8
8.9
9.4
?
|
?
|
| 5.2
|
3.356
|
2.995
|
25.0
|
3N SRC
|
1.82-2.00
|
3He
Carbon
Ca-40
Ca-48
dummy
|
84
100
40
40
40
|
18.0
4.1
11.1
11.6
?
|
?
|
| 6
|
3.356
|
2.885
|
27.0
|
3N SRC
|
2.04-2.18
|
3He
Carbon
Ca-40
Ca-48
dummy
|
84
100
40
40
40
|
36.0
8.2
22.3
23.1
?
|
?
|
| 7
|
3.356
|
2.835
|
29.0
|
3N SRC
|
2.30-2.47
|
3He
Carbon
Ca-40
Ca-48
dummy
|
84
100
40
40
40
|
63.0
14.3
38.8
40.3
?
|
?
|
| 8
|
3.356
|
2.790
|
31.0
|
3N SRC
|
2.58-2.77
|
3He
Carbon
Ca-40
Ca-48
dummy
|
84
100
40
40
40
|
63.0
14.4
38.8
40.3
?
|
?
|
