Difference between revisions of "Run Group M"

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* Restore physics quality beam for the production running at 3-pass, start from the tagger dump (see instructions [https://github.com/JeffersonLab/clas12-manuals/raw/master/beamline/manual/beam_estab.pdf])  
 
* Restore physics quality beam for the production running at 3-pass, start from the tagger dump (see instructions [https://github.com/JeffersonLab/clas12-manuals/raw/master/beamline/manual/beam_estab.pdf])  
 
* After physics quality beam is established to the Faraday cup dump, proceed with the following:
 
* After physics quality beam is established to the Faraday cup dump, proceed with the following:
** Fill the target with LH, see instructions at []
+
** Fill the target with LH, see instructions at [https://github.com/JeffersonLab/clas12-manuals/raw/master/target/Target_Shift_Worker_RGM_2021.pdf]
** Establish production current for LH2 target (limit 80 nA), run DAQ with the production trigger Config. <b> PROD66 </b>, trigger <b> rgm_6GeV_inb_v1_0.trg </b>)
+
** Ask for 10 nA beam, check if rates in the detectors are reasonable
 +
** Establish production current for LH2 target (limit 80 nA), run DAQ with the production trigger Configuration <b> PROD66 </b>, trigger <b> rgm_6GeV_inb_v1_0.trg </b> and increase beam current to 80 nA with steps of 5 nA. At every step record detector and DAQ rates (dump GUIs into logbook), run the monitoring and record DC R1 occupancy. Select the beam current when DC R1 occupancy are <5% and/or the DAQ LT is >95%(consult with RC).
 +
** Start a new run with the selected beam current, use Configuration <b>PROD66_PIN</b> and the production trigger <b> rgm_6GeV_inb_v1_0.trg </b>, take 2 hours of data.
 
** Trigger Validation Runs with the established conditions (Config. <b> PROD66_PIN </b>:
 
** Trigger Validation Runs with the established conditions (Config. <b> PROD66_PIN </b>:
 
# Random trigger @30 kHz 4 hours with the trigger <b> rgm_6GeV_inb_RNDM_30kHz_v1_0.trg </b>
 
# Random trigger @30 kHz 4 hours with the trigger <b> rgm_6GeV_inb_RNDM_30kHz_v1_0.trg </b>

Revision as of 20:45, 9 November 2021

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Clas12design.png