Commissioning and running of sPHENIX

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

Minutes shift change 2023-04-23

general

—————

safety walk through at 1:00pm tomorrow:  be safe!

Tidying rack room would be appreciated

evening:  Cameron

- TPOT gas gauge was stuck:  -> tap dial!

- TPC waiting for formal approval from Rob P that interlocks are enabled

- EMCal testing, MVTX testing

night:  Charles

- only HCal and EMCal were on

- daq issue with HCal data taking, should be resolved by Martin now

- watched air handlers for IR

  - input supply had spiked at 90 degrees, called Joel:  only worry if IR temperature goes above 75 F

- Kevin worked on 1W2 (TPC laser), generated warnings

day:  Sean

- 1W2 work (Kevin)

- techs working on chilled water lines

- cable pull outdoors for SMD detector in tunnel

- John H in, Martin remotely

- one alarm with MVTX chilled water

MBD (Mickey)

- regarding issue with no clock out of the clockmaster FEMs

  - heard back from Chi; will test on Monday if that’s sufficient information to fix; otherwise will have to wait until 26th to solve

- may be able to test Lvl1 trigger in the meantime

HCal (Hanpu)

- after bias had been on all shift, two MPOD modules (but not all channels in them) tripped while taking data; recovered at first try, cause not clear

- data taking stuck when trying to take more data

- Martin advises to try taking data now

- Sean:  HCal LV fluctuating much more than EMCal -> follow up with Steve on Monday

EMCal (Sean)

- nothing much new for EMCal 

TPOT (no report)

TPC (John K, Jin)

- waiting for interlock approval (see above)

- on and off software and firmware development

- don’t expect to run TPC LV today

- Cameron will recycle chillers

INTT (no report)

MVTX (Cameron)

- was able to bring up cooling up quicker than expected

- significant drop in detector cooling, air locked, fixed by Cameron, remote system test may continue

  - no alarm generated by low flow rate

  - Cameron will specify in standing orders what shift crews should check 

sEPD (no report)

DAQ (Martin)

Martin:  GTM work, added in GUI: entire status in one call

happening after 5-6 minutes, bias had been on the whole shift before

Magnet (Kin)

- nothing new

Gas/cooling water ()

- nothing else

Plan of the day

- DAQ development

- subsystem testing

- 

---------------------------------------------------------------------------------
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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- 

---------------------------------------------------------------------------------
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
----------------------------------------------------------------------------------