MPS Minutes 20240208: Difference between revisions

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*Observed spikes in charge reading of EABD:PMT0. Irregular. Noise pick up? Not dramatic, but noticeable regular spikes. May hint at developing problem.
*Observed spikes in charge reading of EABD:PMT0. Irregular. Noise pick up? Not dramatic, but noticeable regular spikes. May hint at developing problem.
*Before end of 2023 year, there was an issue with EMBD:LIC2 (Sudden trips). Did problem come back during the last months? Brandon and AL checked connections, couldn’t find any visible problem. ==> No re-occurrence since last year.  
*Before end of 2023 year, there was an issue with EMBD:LIC2 (Sudden trips). Did problem come back during the last months? Brandon and AL checked connections, couldn’t find any visible problem. ==> No re-occurrence since last year.  
*
*How long will shut down be?
How long will shut down be?
*When is Darklight going in/out?  
When is Darklight going in/out?  
*Expect differences with coverage when Darklight goes in
Expect differences with coverage when Darklight goes in
*EHD line after EHDT:MB4 to the dump will be completely changed. One mode with darklight target out and one mode with darklight target in.
EHD line after EHDT:MB4 to the dump will be completely changed. One mode with darklight target out and one mode with darklight target in.
*Darklight will need 10kW. Will it be heavily shielded?
Darklight will need 10kW. Will it be heavily shielded?
*Collimator will be installed in front of the dump.
Collimator will be installed in front of the dump.
*BPMs are getting moved. Not used in the same way.
BPMs are getting moved. Not used in the same way.
*Who shuts down beam when collimator sees to much
Who shuts down beam when collimator sees to much
*Need similar channel. Target this in the upcoming shutdown. Modification to the daughter board. Solder 2 capacitors. And  
Need similar channel. Target this in the upcoming shutdown. Modification to the daughter board. Solder 2 capacitors. And  
*Document to share the specs. An order of magnitude of power. Need specs from Stephanie. No CW, just pulsed.
Document to share the specs. An order of magnitude of power. Need specs from Stephanie. No CW, just pulsed.
*Verify connections before shielding goes back.
Verify connections before shielding goes back.
*Commissioning for beamloss monitors done
Commissioning for beamloss monitors done
*Run to EMBD. HV pick-up. Expect to be contacted. Number for LIC defeat in FLASH report.
Run to EMBD. HV pick-up. Expect to be contacted. Number for LIC defeat in FLASH report.
*6-8 weeks shut down. Doug needs to install collimator behind the dogleg. Takes until April
6-8 weeks shut down. Doug needs to install collimator behind the dogleg. Takes until April
== 2) Interlock functionality testing ==
== 2) Interlock functionality testing ==
Any time for this?
*Any time for this?
3 BLM force functions have been completed
*3 BLM force functions have been completed
Do the rest during shut-down.
*Do the rest during shut-down.
Mike fixed that one LED wasn’t lighting up.
*Mike fixed that one LED wasn’t lighting up.
Still inconsistencies in messaging, but otherwise functioning nicely
*Still inconsistencies in messaging, but otherwise functioning nicely


== 3) Simulations ==
== 3) Simulations ==

Latest revision as of 14:45, 14 March 2024

MPS meeting minutes – Feb. 8th, 2024 – 10am online Present: AL (chair, recorder), SR, BH, MA, KL, BH, HH, TP, RC, MR Commenced: 10:00 am Adjourned: 10:35 am

1) Status

  • E-hall is open today.
  • Emergency opening on Monday. Turbine issues.
  • Warm oil tank.
  • One of the insulators cracked. Keep running, but need to monitor tank.
  • Following up on reason for EGUN:BIAS trip due to a stage 2 trip from EABT:LIC3B. This was due to losses from EACA. Caused a dozen trips towards end of the test. But detector worked as it was supposed to.
  • Observed spikes in charge reading of EABD:PMT0. Irregular. Noise pick up? Not dramatic, but noticeable regular spikes. May hint at developing problem.
  • Before end of 2023 year, there was an issue with EMBD:LIC2 (Sudden trips). Did problem come back during the last months? Brandon and AL checked connections, couldn’t find any visible problem. ==> No re-occurrence since last year.
  • How long will shut down be?
  • When is Darklight going in/out?
  • Expect differences with coverage when Darklight goes in
  • EHD line after EHDT:MB4 to the dump will be completely changed. One mode with darklight target out and one mode with darklight target in.
  • Darklight will need 10kW. Will it be heavily shielded?
  • Collimator will be installed in front of the dump.
  • BPMs are getting moved. Not used in the same way.
  • Who shuts down beam when collimator sees to much
  • Need similar channel. Target this in the upcoming shutdown. Modification to the daughter board. Solder 2 capacitors. And
  • Document to share the specs. An order of magnitude of power. Need specs from Stephanie. No CW, just pulsed.
  • Verify connections before shielding goes back.
  • Commissioning for beamloss monitors done
  • Run to EMBD. HV pick-up. Expect to be contacted. Number for LIC defeat in FLASH report.
  • 6-8 weeks shut down. Doug needs to install collimator behind the dogleg. Takes until April

2) Interlock functionality testing

  • Any time for this?
  • 3 BLM force functions have been completed
  • Do the rest during shut-down.
  • Mike fixed that one LED wasn’t lighting up.
  • Still inconsistencies in messaging, but otherwise functioning nicely

3) Simulations

  • Progress from Alexey
  • Need to benchmark simulations with what we see in the e-hall.
  • Could use old scans/spills
  • If required, do this before the BL4N collimator shut-down

4) Fibre

  • No update.

5) AOB

  • Ricky is working on license enforcement system related to EOCEM replacement. Started looking at logic and planning to do the testing during the shutdown.
  • Calibration document
  • Planning for BL4N. We have 5 FSD modules. Need 2 for the other side of the tunnel
  • BLM modules (3 are in use)
  • Run fibre from 1 FSD to the other FSD

6) Action Items

  • AL to submit calibration document.
  • SR to send specs for collimator. Needed for integration into FSD shutdown.