SBS DAQ meetings

October 4th 2019

• Bigbite DAQ status ( Eric )
  • slide here [[https://hallaweb.jlab.org/wiki/index.php/File:FB_daq_status_20191004.pdf

pdf]]

• • Eric should look at existing PODD classes for shower to decode Fastbus
  • Shower trigger  : less than 200 ns
  • test trigger lines : 190 ns

• HCAL DAQ status ( Scott )
  • 2 crates : 1 VXS crates with FADC and 1 VME64X with F1 and FADC

-see cosmics in both crates in FADC , missing in TDC ( need to check new timing with 2 crates ) -resolution lock issue with F1, might be overheating -add blanks to improve cooling -reduce resolution of F1 to see if problem goes away - latency from TI ( OT2 is prompt output less delay down to 200 ns)

• UVA GEM status (Byran / Kondo )

- 3 VME crates in clean room with TI ( 2 VME and 1 VXS ) : 2 planes per crate , 1 TI and one fiber, need 1 TI with two transceiver -using CODA3 -wiki with information on wiki : -computer ready soon -3rd (VXS) crate with SSP and MPDs

• SSP readout ( Ben )

- 16 MPD for 1 SSP to be tested - all transceiver and fibers on site - test radiation hardness of transceivers and fibers

• BCM digital :

- daughter board design done, need to make prototypes and test

• Certification of electronics : need to check with Ed Folts ( Nilanga question )

• CDet
  • All TDC for coordinate in weldment : need checks ?
  • Software : running DAQ CODA and root scripts to analyze, need to check if other functionalities needed. Library can be loaded in Hall A / SBS analyzer
  • amount of TDCs for CDet sufficient
  • 25 TDCs - need to check with Bob