E08-014 Run Plan

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Revision as of 08:31, 4 May 2011 by Yez (Talk | contribs) (2nd phase: Helium-3 and Calcium running (Starting on April 21))

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Kinematics Plot

Kinematics.jpg

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
- 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 


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
?
4.1 3.356 2.855 (RQ3=2.5045GeV/c, Iset=????A, Iread=????A) 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

Try to do BPM calibration [see below] during day on Wednesday (probably in the middle of 4.2).

Try to take right arm sieve data after beam studies on thursday (will need evening access to remove sieve slit)

Back to 5.2 (if necessary) and 5.05

Back to 6.5 if need more statistics (might have almost enough since we're forced to run HRS-R at 6.5 monday night)

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
  • Beam energy measurement
  • Right arm Optics --> sieve in



Experiment stops here

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
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
60000
53000
n/a
n/a
n/a
91.0
8.5
32.0
10-15min
10-15min
131.5 + 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
6 3.356 2.885 (RQ3=2.5308GeV/c, Iset=????A, Iread=????A) 27.0 3N SRC 2.04-2.18
(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
164000
138000
n/a
n/a
n/a
65.0
6.0
23.0
10-15min
10-15min
94.0 + 0.5
?
?
?
n/a
n/a