Difference between revisions of "SBS DAQ meetings"

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(October 25th 2019)
(October 25th 2019)
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*Detectors DAQ status
 
*Detectors DAQ status
 
**BigBite
 
**BigBite
 +
*** ADCs working fine running with CODA 2
 +
*** signals from all shower preshower channels
 +
*** can look at data with scripts
 +
*** add TDCs to setup (27x7 + 2x27 ) = 243 channels, only sums so 52 channels ( 1 x 1877S )
 +
*** try CODA3
 +
 
**HCal
 
**HCal
 +
***FADC and F1 all running on HCAL
 +
***resolution checks, not good right now, might be due to discriminator ( Phillips 715 )
 +
***looking at cosmics
 +
***all cables for second half of HCAL
 +
*** still unlock error on 1 TDC , need try lower resolution
 +
*** still on CODA2
  
 
*CODA3 testing (Bob) [https://hallaweb.jlab.org/wiki/images/f/f4/CODA3_Exp.pdf pdf]
 
*CODA3 testing (Bob) [https://hallaweb.jlab.org/wiki/images/f/f4/CODA3_Exp.pdf pdf]

Revision as of 11:16, 25 October 2019

Bluejeans

https://bluejeans.com/596873830/?src=calendarLink


October 25th 2019

  • Detectors DAQ status
    • BigBite
      • ADCs working fine running with CODA 2
      • signals from all shower preshower channels
      • can look at data with scripts
      • add TDCs to setup (27x7 + 2x27 ) = 243 channels, only sums so 52 channels ( 1 x 1877S )
      • try CODA3
    • HCal
      • FADC and F1 all running on HCAL
      • resolution checks, not good right now, might be due to discriminator ( Phillips 715 )
      • looking at cosmics
      • all cables for second half of HCAL
      • still unlock error on 1 TDC , need try lower resolution
      • still on CODA2
  • CODA3 testing (Bob) pdf

October 4th 2019

  • Bigbite DAQ status ( Eric )
    • slide here pdf
    • taking data but timing needs to be done to look at detector signals
    • Eric should look at existing PODD classes for shower to decode Fastbus
    • Shower trigger  : less than 200 ns
    • test trigger lines : 190 ns might


  • 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 (Bryan / 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 : SBS_DAQ:_GEM_EEL_Cleanroom_setup
- 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