MPS Minutes 20220616: Difference between revisions
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**It's fixed but unclear how this happened. Maybe during FLASH update | **It's fixed but unclear how this happened. Maybe during FLASH update | ||
**In future verify epics status after working on crate | **In future verify epics status after working on crate | ||
*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? | |||
**Check seated status, Argon, HV, PMT current readback | **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 | **Similar to optics ok, given set of detectors to be turned on. Maybe modification of the run permit | ||
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*Ricky to '''update the conversion factors.''' | *Ricky to '''update the conversion factors.''' | ||
*FLASH to run next week | *FLASH to run next week | ||
*new FLASH board has it been tested with a current source? HH checked in the lab. | |||
*Nothing was changed in the hall | |||
*Other board can be put back easily if needed. Reads 920 nA. | |||
* | * | ||
===AOB=== | ===AOB=== | ||
* | *Check if we can use EACA conditioning to test fibre. Check if yanyun is doing pulsed conditioning or cw. | ||
Revision as of 17:30, 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
- 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?
- 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
- new FLASH board has it been tested with a current source? HH checked in the lab.
- Nothing was changed in the hall
- Other board can be put back easily if needed. Reads 920 nA.
AOB
- Check if we can use EACA conditioning to test fibre. Check if yanyun is doing pulsed conditioning or cw.