Difference between revisions of "Monitoring/Analysis Instructions During A Shift"
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The plan is to take SHMS singles with Hydrogen and Aluminum targets. Please set the HMS/SHMS angle | The plan is to take SHMS singles with Hydrogen and Aluminum targets. Please set the HMS/SHMS angle | ||
and momentum settings accordingly. See [https://hallcweb.jlab.org/wiki/images/c/c9/E12_10_003_RunSheetV2.pdf Kinematics Sheet]. | and momentum settings accordingly. See [https://hallcweb.jlab.org/wiki/images/c/c9/E12_10_003_RunSheetV2.pdf Kinematics Sheet]. | ||
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=Pre-Analysis= | =Pre-Analysis= | ||
1. Once the angles/momentum for each spectrometer are set and the target is in place, set pS1=0 (SHMS 3/4 TRG), and ps2-ps6=-1 in the DAQ Gui. | 1. Once the angles/momentum for each spectrometer are set and the target is in place, set pS1=0 (SHMS 3/4 TRG), and ps2-ps6=-1 in the DAQ Gui. | ||
Revision as of 18:03, 30 March 2018
Instructions for D(e,e'p)n Experiment (E12-10-003)
Useful Links
Setting the Momentum in the HMS/SHMS Magnets
H(e,e'p) Check and Aluminum Dummy Instructions
Overview:
The plan is to take SHMS singles with Hydrogen and Aluminum targets. Please set the HMS/SHMS angle and momentum settings accordingly. See Kinematics Sheet.
Pre-Analysis
1. Once the angles/momentum for each spectrometer are set and the target is in place, set pS1=0 (SHMS 3/4 TRG), and ps2-ps6=-1 in the DAQ Gui. Keep an eye on the rates, and make sure NOT to exceed 2500 Hz, so we can keep the computer live time > 90%. In case the singles rates exceed this limit, set the value on the 'target rate' box to 2500 and hit Enter to automatically set the pre-scale rate accordingly.
2. In the middle of the run, check online plots for the detectors
Login to cdaql1 machine and go to hallc_replay directory: > ssh cdaql1 > go_analysis
for SHMS detector check: ./run_coin_shms.sh <run_number>
for HMS detector check: ./run_coin_hms.sh <run_number>
3. After full run, check the Good events and Update the file on Google docs
a. Login to cdaql1 machine
b. Update the file " standard.Kinematics " : usually opened in HIGH VOLTAGE Monitor (HCDESK 2 ) path : /net/cdaqfs/home/cdaq/hallc-online/hallc_replay/DBASE/COIN/STD/standard.kinematics
c. Analyze the run with :
