MPS Minutes 20220210: Difference between revisions

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(Created page with "Meeting commenced: 10:00am Meeting adjourned: am Present: HH, MA, KL, RN, MR, RC, AD, AL ==E-Linac status== *First beam on Tuesday afternoon *Priority is on FLASH *Thomas sai...")
 
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*Priority is on FLASH
*Priority is on FLASH
*Thomas said maybe first option for MPS is today or on Monday to do re-commissioning scans
*Thomas said maybe first option for MPS is today or on Monday to do re-commissioning scans
**Once that's done, final thresholds can be set and updated in document "E-Linac BLM controls Configuration Specifications". And Darren can mount high energy LIC covers permanently.
*AL turned on Ar flow on Tuesday -> Just one bottle. Other has different valve, which seemed stuck.
*AL turned on Ar flow on Tuesday -> Just one bottle. Other has different valve, which seemed stuck.
**Regarding Ar flow. Do we already have interlocks in place to prevent running beam, when Ar flow is not given? As technically, you don't have proper BLM response and may not catch beam loss.
**Regarding Ar flow. Do we already have interlocks in place to prevent running beam, when Ar flow is not given? As technically, you don't have proper BLM response and may not catch beam loss.
*Martin had a few more minutes with Thomas, timeline for first tests?


==BLM calibration==
==BLM calibration==
*AL ready to send out document, just need to get values for LICs. There was no Ar flow until Tuesday
*AL ready to send out document, just need to get values for LICs. There was no Ar flow until Tuesday
*Will do another manual calibration today, add values and send out
*Question on sequence for PMT/LIC. If first calibration point is not checking out, should system continue to second point anyways? Or state calibration error immediately and abort calibration?  
*Question on sequence for PMT/LIC. If first calibration point is not checking out, should system continue to second point anyways? Or state calibration error immediately and abort calibration?  
*Should there be an automated second attempt of the system to calibrate a channel, or should this only be initiated by expert?
*Should there be an automated second attempt of the system to calibrate a channel, or should this only be initiated by expert?

Revision as of 17:06, 10 February 2022

Meeting commenced: 10:00am Meeting adjourned: am Present: HH, MA, KL, RN, MR, RC, AD, AL

E-Linac status

  • First beam on Tuesday afternoon
  • Priority is on FLASH
  • Thomas said maybe first option for MPS is today or on Monday to do re-commissioning scans
    • Once that's done, final thresholds can be set and updated in document "E-Linac BLM controls Configuration Specifications". And Darren can mount high energy LIC covers permanently.
  • AL turned on Ar flow on Tuesday -> Just one bottle. Other has different valve, which seemed stuck.
    • Regarding Ar flow. Do we already have interlocks in place to prevent running beam, when Ar flow is not given? As technically, you don't have proper BLM response and may not catch beam loss.
  • Martin had a few more minutes with Thomas, timeline for first tests?

BLM calibration

  • AL ready to send out document, just need to get values for LICs. There was no Ar flow until Tuesday
  • Will do another manual calibration today, add values and send out
  • Question on sequence for PMT/LIC. If first calibration point is not checking out, should system continue to second point anyways? Or state calibration error immediately and abort calibration?
  • Should there be an automated second attempt of the system to calibrate a channel, or should this only be initiated by expert?

View screen / BLM interlocks for tuning

  • AL preparing documents for requirements and specs
  • No update since last time

FLASH/Darklight effect on MPS

  • Discussion on power limits. Followed up with Luca. Waiting on response.

Fibre

  • 2 PMTs may be available from Conny??
  • Thomas L. had factory/of-the-shelve fibre coupler. We may need 3D printed coupler and just buy connector. HH thinks this is possbile. Have 3D printer with black plastic available for use.
  • MA will try to get drawings from manufacturer -> Was this done?

AOB

  • AL talked to Jessica Blando regarding Ar supply. She said she would take over for Rick and continue to be in charge of purchasing. Have quick in person meeting tomorrow as well to check out the valve. JB also doesn't have key for shed?

Action Items

  • AL to follow up with Luca E. on power levels for FLASH dump.
  • AL to send out document for view screen/BLM interlock requirements/specs
  • AL to implement comments for BLM calibration requirements/specs document and send out to reviewers
  • MA: What SiPMs and or PMTs are we looking to buy?
  • Fibre coupler: MA will try to get drawings from manufacturer for 3D printing option
  • MA to check with Phil L. if all parts are available for BL4N LICs.
  • 2nd stage trip implementation:
    • Final status of implementation?
    • What is left to do/needed?
  • AL to take recommissioning scans in medium and high energy section, once beam is back.