January 29th 2021

• Updates
  • HCal
    • still taking cosmics
  • Bigbite hodoscope
    • working on software SBS-online, still working on root tree with SBS online. Basic decoder working
  • Bigbite shower
    • different trigger for BB shower - cosmics trigger coming from shower sum with scintillator - FADC only look backs in time - need to delay trigger currently using VME - will have to delay the trigger for the FADC if use same cables
    • FADC order in - expect get those 1 or 2 months
    • need integral , time and pedestal subtraction - mode 7 gives pedestal - time + integral + pedestal - mode 9 in Hall C ? need to check and could add to Hall B firmware
    • can use delay from TI - can delay FADC trigger with software 1 us scale
  • HRS
    • all 3 Fastbus crate working stand alone - there was a bug in TDC readout list for 1877 - need to do podd module to look at data - looking at FADC crate - will use as master with 3 Fastbus as slave - need to add the transceiver to connect the TI from Fastbus - will take RHRS FADC for LHRS -

6 FADCs - need to plan for aerogel -

• • • working on Centos 7 install - will compare with the TEDF setup
    • detector not in yet in stack
  • GEM INFN : running pedestal smoothly - will take cosmics again next week - loose cable resolved on Monday for MPD17 -

added wire holder : at patch panel - short HDMI or long HDMI cable become loose - unplugging and replugging resolve the issue - can be replaced if needed - analog cable - reset LV at the same time - check if reset can fix it

• • UVA GEM setup
    • taking cosmics with new layers , connections were fixed and taking data now - one new MPD giving readout error in same crate as other were replaced - other previous 2 error were fixed with replacing MPD
    • computer xfs error : not issue since Thir fixed it with xfs_repair
    • Arunda starting to make inventory of MPDs - about 3 MPDs have issues - some APVs might be bad - inventory in process - when we have the lot of MPD send to Paolo for check and maybe send to company to be fixed - no plan for visit in US

, could meet with Paolo and electronics group to try to fix remotely

• • • new MPD order , Nilanga in contact with company , NSF money available
    • Update GEM readout from Ben : bugs addressed with new firmware, running in TEDF right - issues appear when running buffering - corruption ( cannot read and write at same time ) - 800 Hz no zero suppression - 1.8 KHz with zero suppression ( expect 2.7 kHZ when optimized from simulation ) - Will setup the common mode supression and zero
    • 4.5 KHz with VTP readout

supression - will be ported to VTP - look at DAQ rate as function of occupancy - expect 30 % occupancy

• • • event viewer  : to look at evio file by Xinzhan
  • CDet
    • new module on the bench being setup , PMTs installed next week and will start taking cosmics data
    • VETROC received
    • VXS crate received
    • clrlpc
    • need layout for CDet - will work with Peter
    • David set up CODA on clrlpc, will get back to it now hardware is available

• Helicity : Paul might be able to help, new helicity board - recording the helicity pattern for each trigger - pseudorandom - board going out for layout soon will check with Ed for status - expect boards in spring - will compare with board and usual helicity readout for cross checks

• GEn RP : setting up FADCs readout in ESB -

GEM testing for GEN RP - two groups on for Large Angle should move to ESB ( 1 to 2 months time scale ) - and can try to readout out with hodoscope - Rest of GEM will be assembled in the Hall- option to mount RP in cleanroom so GEM setup already set up ( will check ) - extra space for inline GEM - could be added to the cleanroom

• Still need CPU in crate for CPUs
  • get new CPUs for the VME crate - will ask for quote and check with Thia