A-frame setup

A-frame setup

A-frame mounted with 7 CRT modules (0.96m x 2.73m) placed horizontally and vertically in coincidence for the purposes of module/FEB characterisation using cosmic ray muons. Characterisation tests involve measuring the ADC distribution from SiPMs for MIP muons passing through several modules in coincidence.

Aframe Run Logs

Aframe Details/photos/timingdelays

Testing at DAB Instructions

image Figure 1 - Left: Picture of the A-frame setup in the SBN-ND building. Right: Diagram showing the orientation of CRTs with their FEB number (red arrows) and the daisy-chain connection between each FEB (pink arrows) with their respective cable length converted to ns signal delay.

A schematic of the A-frame is shown in figure 1, outlining the daisy-chained cabling between the FEBs connected to the CRTs. The cables connect the T0, T1, Tin and Tout inputs of the FEBs in the following order:

DAQ —-> 92 –2ns–> 73 –10ns–> 75 –6ns–> 76 –8ns–> 72 –6ns–> 71 –8ns–> 82

The Tin and Tout daisy-chain loops back from 82 to 92, whereas the T0 and T1 chain terminates at 82.

Working directory

  • ssh into evb04 with ssh sbnd-evb04, then run the crt_Aframe_launchdaq.sh script to set up A-frame working directory (DAQ_DevAreas/DAQ_23Sep2022CRTNoise/srcs/sbndaq/sbn-nd/DAQInterface) where the DAQInterface is run. The crt config file is crt01.fcl.

  • Raw data is stored in /daq/scratch/crt_Aframe_data/. Analysis scripts are in /home/nfs/sbnd/Aframe, with each run’s analysed root file in the runs folder, all of which analysed using the analyze_event.fcl file.

Side notes for data taking

  • Remember to turn on the voltage for the modules before taking the run of data. These slides explain how to turn on the voltage. The current setup for A-frame is channel 9.

  • Please fill in the run logs when taking data.

  • Grafana for CRT monitor:

    • These slides include all details about the CRT monitor grafana page.
    • Leave a terminal open where you do ssh -KL localhost:10089:localhost:10080 sbnd@sbnd-gateway01.fnal.gov 'ssh -KL localhost:10080:localhost:10080 sbnd@sbnd-evb04.fnal.gov'
    • Then go to localhost:10089/ in your web browser

Analyse directory

  • ssh into evb04 with ssh sbnd-evb04, then run the ana_launchdaq.sh script to set up A-frame analysing directory (DAQ_DevAreas/DAQ_24Sep2022ANA/srcs/). sbndaq_artdaq/sbndaq-artdaq/ArtModules/SBND/
  • Makes two trees, standard EventAna tree and CRT two-strip-hit tree: CRTHitAna_module.cc
  • For SiPM gain measurement analysis: CRTSinglePEAna_module.cc sbndaq_artdaq/sbndaq-artdaq/ArtModules/Common
  • CRT data only, one tree entry per FEB data packet: BernCRTAna_module.cc
  • 1730 data only: CAENV1730Dump_module.cc
  • many things all together: EventAna_module.cc fcl scripts to run the above: ~sbnd/ana_crt analyze_event_hits.fcl: check all fcl params inside, makes CRT two-strip-hit trees