Difference between revisions of "FCAL2 Meeting 2024-10-30"

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= Minutes =
 
= Minutes =
  
−
''Attendees:''
+
''Attendees: Tim, Josh, Scott, Ryan, Hovanes, Igal, Mark, Malte, Eugene, Matt, Simon, Zisis''
 +
 
 +
# Announcements: Eugene said that the beam may come with 1 week delay.
 +
# Interlock Discussion:
 +
#* Hovanes mentioned that at the Slow Controls Meeting Sasha requested more inputs to the interlock: include fan status to trip HV, in addition to more temperature sensors behind the ECAL. This discussed extensively and it was mentioned that the Fan read-back is not working reliably. Tim said that the chiller is not in the interlock. 
 +
#* Malte said that there is a procedure for the shift workers to restore the Lead Glass from a trip.  A similar one is needed for ECAL, although in that case it is likely that the experts will need to be called.
 +
# Action Items
 +
#* Malte reported that 4 paddle counters for cosmics  are now installed above and below the whole FCAL2, with single sided readout.  The muon Edep is 30-50 MeV through the lead glass blocks.  The calibration will involve using the LMS system to gain balance neighbouring PMTs and cosmics will be looked at as well.
 +
# Detector
 +
#* Malte reported that the LED cabling on the lead glass is done and all is good. 
 +
#* Hovanes reported that he will be on holidays in December so the ECAL LMS should be worked on before.  The breakout boards need to be connected.
 +
#* Bobby will install the white LED strips inside the dark room.
 +
# Mechanical
 +
#* Tim reported that there is an OSHA potential concern for CO2 build up in the dark room.  The ensuing discussion included using the fan of the A/C or the dehumidifier.  No switching noice interference from such devices was detectable in the eval bases.  The Dark room will be sealed in early December which will also include caulking.
 +
#* Tim walked us through the above GANTT chart.  The temp HV enclosure could cause a delay by a week or son in the overall schedule but Eugene reiterated the importance to not let the closing of the Dark room spill into January. Closing the dark room has higher priority than adjusting the light transmission through the ECAL fibers.
 +
# Electrical
 +
# Electronics/DAQ
 +
#* Malte repeated that one VXS crate is till malfunctioning, but the other group of 5 crates is usable.  Eugene suggested swapping units to see if the issue can be better pin pointed. 
 +
# Any other business
 +
#* Matt mentioned that the time is nearing to start the Run Coordination meetings that will necessarily include all systems (BCAL, TOF, trigger...).  This will discuss out our next FCAL2 meeting.

Latest revision as of 02:03, 6 November 2024

Meeting time and location:

Action Items

  1. Keep updating the GANTT chart:
  1. Measure waveforms.
  2. Proper setup for cosmics.
  3. Google project calendar review.

Agenda

  1. Announcements
  2. Interlock Discussion
  3. Action Items
  4. Detector
  5. Mechanical
  6. Electrical
  7. Electronics/DAQ
  8. Any other business

Minutes

Attendees: Tim, Josh, Scott, Ryan, Hovanes, Igal, Mark, Malte, Eugene, Matt, Simon, Zisis

  1. Announcements: Eugene said that the beam may come with 1 week delay.
  2. Interlock Discussion:
    • Hovanes mentioned that at the Slow Controls Meeting Sasha requested more inputs to the interlock: include fan status to trip HV, in addition to more temperature sensors behind the ECAL. This discussed extensively and it was mentioned that the Fan read-back is not working reliably. Tim said that the chiller is not in the interlock.
    • Malte said that there is a procedure for the shift workers to restore the Lead Glass from a trip. A similar one is needed for ECAL, although in that case it is likely that the experts will need to be called.
  3. Action Items
    • Malte reported that 4 paddle counters for cosmics are now installed above and below the whole FCAL2, with single sided readout. The muon Edep is 30-50 MeV through the lead glass blocks. The calibration will involve using the LMS system to gain balance neighbouring PMTs and cosmics will be looked at as well.
  4. Detector
    • Malte reported that the LED cabling on the lead glass is done and all is good.
    • Hovanes reported that he will be on holidays in December so the ECAL LMS should be worked on before. The breakout boards need to be connected.
    • Bobby will install the white LED strips inside the dark room.
  5. Mechanical
    • Tim reported that there is an OSHA potential concern for CO2 build up in the dark room. The ensuing discussion included using the fan of the A/C or the dehumidifier. No switching noice interference from such devices was detectable in the eval bases. The Dark room will be sealed in early December which will also include caulking.
    • Tim walked us through the above GANTT chart. The temp HV enclosure could cause a delay by a week or son in the overall schedule but Eugene reiterated the importance to not let the closing of the Dark room spill into January. Closing the dark room has higher priority than adjusting the light transmission through the ECAL fibers.
  6. Electrical
  7. Electronics/DAQ
    • Malte repeated that one VXS crate is till malfunctioning, but the other group of 5 crates is usable. Eugene suggested swapping units to see if the issue can be better pin pointed.
  8. Any other business
    • Matt mentioned that the time is nearing to start the Run Coordination meetings that will necessarily include all systems (BCAL, TOF, trigger...). This will discuss out our next FCAL2 meeting.
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