Difference between revisions of "Fall 2016 calorimeter calibration (elastic)"
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(New page: Back to https://hallaweb.jlab.org/wiki/index.php/Run_Plan_DVCS3 Need to remove the plastic shield. <br> Calorimeter-Target distance =5.5m<br> LH2 target, unrastered beam (which mean...) |
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| − | Back to [[https://hallaweb.jlab.org/wiki/index.php/ | + | Back to [[https://hallaweb.jlab.org/wiki/index.php/Run_Plan_%28DVCS3%29 Back to the DVCS3 run plan page]] |
| + | '''This is in progress (09-20-16 contact J. Roche)''' | ||
Need to remove the plastic shield. <br> | Need to remove the plastic shield. <br> | ||
| − | Calorimeter-Target distance = | + | Calorimeter-Target distance =6.0m<br> |
LH2 target, unrastered beam (which means beam current at less than 5 uA). <br> | LH2 target, unrastered beam (which means beam current at less than 5 uA). <br> | ||
LHRS in positive polarity.<br> | LHRS in positive polarity.<br> | ||
Open LHRS collimator<br> | Open LHRS collimator<br> | ||
DAQ: DVCS config, trigger is S0+S2, autovalidation.<br> | DAQ: DVCS config, trigger is S0+S2, autovalidation.<br> | ||
| − | angle<SUB>LHRS</SUB>= | + | angle<SUB>LHRS</SUB>= 32.50 [deg]<br> |
| − | momentum<SUB> LHRS</SUB>= | + | momentum<SUB> LHRS</SUB>= 3.0 GeV<br> |
beam energy= 6.4 GeV<br> | beam energy= 6.4 GeV<br> | ||
| − | We will take about | + | We will take about '''2 hours''' beam with each of the following three calorimeter angles: 21.4, 22.7 and 24.0 deg. |
| + | The plot below shows calculation for the case where we would move the calorimeter and the LHRS for each kinematic point. | ||
| − | [[Image: | + | [[Image:DVCS3 Fall 2016 elastic.jpg| 1000px]] |
Latest revision as of 14:18, 20 September 2016
Back to [Back to the DVCS3 run plan page]
This is in progress (09-20-16 contact J. Roche)
Need to remove the plastic shield.
Calorimeter-Target distance =6.0m
LH2 target, unrastered beam (which means beam current at less than 5 uA).
LHRS in positive polarity.
Open LHRS collimator
DAQ: DVCS config, trigger is S0+S2, autovalidation.
angleLHRS= 32.50 [deg]
momentum LHRS= 3.0 GeV
beam energy= 6.4 GeV
We will take about 2 hours beam with each of the following three calorimeter angles: 21.4, 22.7 and 24.0 deg.
The plot below shows calculation for the case where we would move the calorimeter and the LHRS for each kinematic point.
