Difference between revisions of "Instructions for shift crew"
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=== Scaler rates === | === Scaler rates === | ||
| − | + | Very important: keep an eye on the Hall C Scaler Data GUI and make sure the rates with beam ON are steady | |
| + | |||
| + | Keep PS6 after prescale lower than ~3kHz. Prescale PS1 and PS4 such that prescaled rates are lower than 100 Hz. | ||
Check the deadtime and the scaler in the 50k report file which is on: | Check the deadtime and the scaler in the 50k report file which is on: | ||
/home/cdaq/vcs2019/hallc_replay_vcs/REPORT_OUTPUT/COIN/PRODUCTION/ | /home/cdaq/vcs2019/hallc_replay_vcs/REPORT_OUTPUT/COIN/PRODUCTION/ | ||
| + | |||
| + | Check if the single arm yields are stable compared to other runs from the monitoring table: | ||
| + | |||
| + | > go_analysis | ||
| + | |||
| + | > ./make_vcs_table | ||
=== Hall C VCS replay directory === | === Hall C VCS replay directory === | ||
Revision as of 21:02, 25 July 2019
Scaler rates
Very important: keep an eye on the Hall C Scaler Data GUI and make sure the rates with beam ON are steady
Keep PS6 after prescale lower than ~3kHz. Prescale PS1 and PS4 such that prescaled rates are lower than 100 Hz.
Check the deadtime and the scaler in the 50k report file which is on:
/home/cdaq/vcs2019/hallc_replay_vcs/REPORT_OUTPUT/COIN/PRODUCTION/
Check if the single arm yields are stable compared to other runs from the monitoring table:
> go_analysis
> ./make_vcs_table
Hall C VCS replay directory
Login to cdaql1 machine and go to hallc_replay directory if you are not there already:
> ssh cdaql1
> go_analysis
go_analysis will bring you to the vcs2019 directory.
Monitoring
Run standard HMS and SHMS coincidence replay after 50000 trigger and once after the run is done. Run:
> ./run_coin_hms.sh
> ./run_coin_shms.sh
It replays the most recent run and monitoring plots will automaticaly open. It will take the number of events that have been already accumulated.
- Check all the figures and compare them to the reference. If anything seems wrong, try to fix it, ask an expert if needed and make a log entry.
To replay a previous run or replay only with a limited number of events, do:
./run_coin_hms.sh <run_number> <number_of_event>
./run_coin_shms.sh <run_number> <number_of_event>
Give a number of events or "-1" for a full run replay.
- If no 3d person on shift, the TO is asked for running and monitoring the coincidence replay scripts: see Instructions for analysis shifts
Run sheet
Fill the run sheet for each run, including junk
The run sheet has to be filled by the SL.
