Monitoring/Analysis Instructions During A Shift

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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.

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 to NOT exceed 2500 Hz, so we can keep the computer live time > 90%.

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 :