Difference between revisions of "PrimEx instructions"

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If the beam is fluctuating more usual, you might want to run it for the previous 2 minutes instead:
 
If the beam is fluctuating more usual, you might want to run it for the previous 2 minutes instead:
 
* ./runai.sh 2
 
* ./runai.sh 2
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Before deployment, the AI should be initialized, when the CDC's HV and the beam current are at their nominal values.  This is done by running ./initai.sh  This writes the D1 max temp in K and the mean AI HVB current into the file defaults.txt which is read in by runai.sh.
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[https://epicsweb.jlab.org/wave/?myaDeployment=ops&myaLimit=100000&title=&fullscreen=false&layoutMode=3&viewerMode=2&pv=RESET%3Ai%3AGasPanelBarPress1&pv=IBCAD00CRCUR6&RESET%3Ai%3AGasPanelBarPress1label=RESET%3Ai%3AGasPanelBarPress1&RESET%3Ai%3AGasPanelBarPress1color=%23a6cee3&RESET%3Ai%3AGasPanelBarPress1yAxisLabel=&RESET%3Ai%3AGasPanelBarPress1yAxisMin=&RESET%3Ai%3AGasPanelBarPress1yAxisMax=&RESET%3Ai%3AGasPanelBarPress1scaler=&RESET%3Ai%3AGasPanelBarPress1yAxisLog=&windowMinutes=120&IBCAD00CRCUR6label=IBCAD00CRCUR6&IBCAD00CRCUR6color=%231f78b4&IBCAD00CRCUR6yAxisLabel=&IBCAD00CRCUR6yAxisMin=&IBCAD00CRCUR6yAxisMax=&IBCAD00CRCUR6yAxisLog=&IBCAD00CRCUR6scaler=&start=2021-10-12+16%3A31%3A58&end=2021-10-12+16%3A36%3A58 handy beam current online chart]
I don't think this is crucial as sensible defaults are in the file at the moment. 299K and 8.1A.
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Before deployment, the AI was initialized, when the CDC's HV and the beam current were at their nominal values.  This was done by running ./initai.sh  This wrote the D1 max temp in K and the mean AI HVB current into the file defaults.txt which is read in by runai.sh.
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Both initai and runai append a summary into log.txt.
 
Both initai and runai append a summary into log.txt.

Revision as of 20:40, 12 October 2021

Log on to the counting house bluejeans and talk to the shift leader. The shift schedule is linked here .

Start up a VNC session, following these instructions


To run the AI, gathering epics for the previous minute:

  • Logon to gluon47 as hdops
  • cd /group/halld/Users/njarvis/aiec
  • ./runai.sh

If the beam is fluctuating more usual, you might want to run it for the previous 2 minutes instead:

  • ./runai.sh 2


Set the HV back to 2125 V when you finish


handy beam current online chart

Before deployment, the AI was initialized, when the CDC's HV and the beam current were at their nominal values. This was done by running ./initai.sh This wrote the D1 max temp in K and the mean AI HVB current into the file defaults.txt which is read in by runai.sh.


Both initai and runai append a summary into log.txt.