MPS Minutes 20220616: Difference between revisions

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MPS meeting minutes – June 16th – 2022
MPS meeting minutes – June 16th – 2022


Present:
Present:HH, RC, KL, AD, AL, MR, MA, SR, BH
Meeting commenced: 10am PT
Meeting commenced: 10am PT
Meeting adjourned:  
Meeting adjourned:  
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**EMBD:LIC0 indicated red on "installed" status. Maybe module wasn't seated properly?
**EMBD:LIC0 indicated red on "installed" status. Maybe module wasn't seated properly?
**HH investigated this morning
**HH investigated this morning
**It's fixed but unclear how this happened. Maybe during FLASH update
**In future verify epics status after working on crate
**Check seated status, Argon, HV, PMT current readback
**Similar to optics ok, given set of detectors to be turned on. Maybe modification of the run permit
**Work request
**Amend document for seated status
**Calibrations
*Argon flow started yesterday
*Argon flow started yesterday
*Keiko updated signal PV in the alarm handler and archiver for former ELBT:PMT1A now ELBT:LICSP1 (spare channel)
*Keiko updated signal PV in the alarm handler and archiver for former ELBT:PMT1A now ELBT:LICSP1 (spare channel)
*


===S1 to S2 delay===
===S1 to S2 delay===
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*detect mode was fixed at 10us (plus some inherent delay through the FSD and timing system ~5us).  
*detect mode was fixed at 10us (plus some inherent delay through the FSD and timing system ~5us).  
*Delay is adjustable between 1us and 25us. Default is 10us.
*Delay is adjustable between 1us and 25us. Default is 10us.
*Look for S2 trips. Log how many we get.
*Brandon just started tuning and it tripped PMT1B causing S2. Dark current much higher?
*EPICS indications for S1/S2 trips => Ricky to check what is indicated when at the moment and potentially adjust to avoid confusion
*EPICS indications for S1/S2 trips => Ricky to check what is indicated when at the moment and potentially adjust to avoid confusion
 
*Maybe S1 and S2 LED.


===FLASH===
===FLASH===
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the EPICS screen. Basically all existing conversion need to be increased by 100.  
the EPICS screen. Basically all existing conversion need to be increased by 100.  
*Rod to let HH know who will be make the changes and HH will email the “updated” user manual.
*Rod to let HH know who will be make the changes and HH will email the “updated” user manual.
*Ricky to '''update the conversion factors.'''
*FLASH to run next week
*
   
   
===E-Linac status===
===E-Linac status===

Revision as of 17:24, 16 June 2022

MPS meeting minutes – June 16th – 2022

Present:HH, RC, KL, AD, AL, MR, MA, SR, BH Meeting commenced: 10am PT Meeting adjourned:

MPS status

  • LIC0 trouble shooting
    • EMBD:LIC0 indicated red on "installed" status. Maybe module wasn't seated properly?
    • HH investigated this morning
    • It's fixed but unclear how this happened. Maybe during FLASH update
    • In future verify epics status after working on crate
    • Check seated status, Argon, HV, PMT current readback
    • Similar to optics ok, given set of detectors to be turned on. Maybe modification of the run permit
    • Work request
    • Amend document for seated status
    • Calibrations
  • Argon flow started yesterday
  • Keiko updated signal PV in the alarm handler and archiver for former ELBT:PMT1A now ELBT:LICSP1 (spare channel)

S1 to S2 delay

  • the delay between stage 1 trip detection to stage 2
  • detect mode was fixed at 10us (plus some inherent delay through the FSD and timing system ~5us).
  • Delay is adjustable between 1us and 25us. Default is 10us.
  • Look for S2 trips. Log how many we get.
  • Brandon just started tuning and it tripped PMT1B causing S2. Dark current much higher?
  • EPICS indications for S1/S2 trips => Ricky to check what is indicated when at the moment and potentially adjust to avoid confusion
  • Maybe S1 and S2 LED.

FLASH

  • anything since last week’s email?
  • Board modifications complete
  • Still need to update epics conversion factors
  • HH thinks the modified board will work for FLASH. Before I it can be install, Controls will need to change the conversion factors on

the EPICS screen. Basically all existing conversion need to be increased by 100.

  • Rod to let HH know who will be make the changes and HH will email the “updated” user manual.
  • Ricky to update the conversion factors.
  • FLASH to run next week

E-Linac status

=> Brandon

AOB

  • The beam path restrictions are not really set up to make sure BLMs are running. Only checking HV for low-energy section
  • Can we implement this now for the medium and high-energy sections? Would this cause issues, when temporarily disabling detectors?
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