Commissioning and running of sPHENIX

[Stefan Bathe <stefan.bathe AT baruch.cuny.edu>]

Minutes shift change 2023-04-17

general (Kin)

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- test walk through for operation readiness today

  - no new issues

- real walk-through next Monday

evening:  Oliver
- nothing

night:  Ejiro

- the mouse came back

- Stefan called the building manager today, who will put in a work order for that

day:  Virginia

- EMCal South LV was turned on today with cooling (in addition to North)

  - but no interlocks yet, so only expert operation

MBD (Mickey)

- after Jimmy cleaned up cables, checked noisy channels, better, but should be fixed up some more

- Mickey cleaned up more, will continue tomorrow

HCal (Virginia)

- paused taking cosmics data until we can sort out issues with data taking

EMCal (Anthony)

- all racks reading out

- now checking cabling in rack room

- also checking out broken packets (checksum errors)

TPOT (Hugo)

- Hugo only coming tomorrow (flight issues)

- plan to work on noise, electronics

TPC (John K)
- Rob gave OK to turn on even number sectors in both North and South
  - no interlocks yet, expert only

INTT (Rachid)
- N and S tested, testing in bore done

- Steve and Sal were working on cooling interlock system

- will test interlocks tomorrow morning

- Maya updated GUI for LV to be released to shift crew

- today new framework for FELIX

- will start testing at 5:00pm (daily)

MVTX (John H)

- new fibers will later this week

sEPD (Rosi)
- South side frame being installed

- will be surveyed tomorrow

- will install 12 optical fibers now

- other 12 will be installed later this week

- that will be all that goes in for now

DAQ

- see separate DAQ meeting after shift change

Magnet (Kin)
- hipot test

  - narrowed problem down to be inside magent

  - noticed that vacuum pump wasn’t running, turned pump on, then test successful

  - that means current was flowing through gas in magnet

Gas/cooling water (no report)
- Rachid requests nitrogen to protect INTT sensors

Plan of the day

- DAQ development

- subsystem testing

- 

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Stefan Bathe

Professor of Physics
Baruch College, CUNY
and RIKEN Visiting Scientist

Baruch:                                     BNL:
17 Lexington Ave                      Bldg. 510
office 940                                  office 2-229
phone 646-660-6272                phone 631-344-8490
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