• This TWiki is for analysis of RPC detector noise data


  • Universita Roma Tor Vergata
    • Giulio Aielli - project coordination for detector and FE electronics ageing
    • Alessandro Rocchi - data analysis
  • Sapienza University of Rome (Roma 1)
    • Claudio Luci - project coordination for operational aspects
  • USTC
    • Marco Sessa - analysis coordination and data analysis
    • Wenxiao Wang - data analysis
    • Rustem Ospanov - analysis framework development and support

Project description

  • Analyse RPC detector noise data to study ageing of RPC panels and FE electronics as a function of time and integrated luminosity
  • Identify and mask noisy RPC strips to improve operational performance and reduce trigger rates

ToDo items

  • Implement code to use +/- 100 ns window to compute noise to remove spikes at start/end of inclusive time window
  • Normalise 2d noise rate to Hz (same procedure as 1d rates)
  • Plot noise rates of individual strips and panels versus integrated luminosity and also run number
  • Measure noise rates using collision data using +/- 100 ns window but removing +/- 25 ns central window to veto collision muons
  • Publish on website a text file with strip/panel noise rates for each collision run

RPC noise runs

For USTC people, these datasets can be found here: /home/msessa/storage

 $ eos ls /eos/atlas/atlastier0/rucio/data17_comm/calibration_RPCNoise

Code examples

Code instructions

  • Input RAW data
          At CERN:
          $ ssh lxplus
          $ eos ls /eos/atlas/atlastier0/rucio/data17_comm/calibration_RPCNoise
          $ rucio list-dataset-replicas data18_comm.00360459.calibration_RPCNoise.daq.RAW
          At USTC:
          $ ssh -XY
          $ ls -al /home/msessa/storage/data18_comm.00360459.calibration_RPCNoise.daq.RAW

      $ mkdir -p ~/testarea/RPCRel21
      $ cd ~/testarea/RPCRel21
      $ mkdir source build
      $ cd source
      $ git clone
      $ ln -s PhysicsRPCProd/macros/setup/
      $ source
      $ acm compile

      $ mkdir ../run
      $ cd ../run
      $ athena ../source/PhysicsRPCProd/share/ -c 'inputFile="";EvtMax=10000'

      $ ls -al /home/msessa/storage/ntuples/noise_run_360459

  • Instructions for making histograms
      $ mkdir -p ~/testarea/RPCBase21
      $ cd ~/testarea/RPCBase21
      $ mkdir source build
      $ cd source
      $ git clone
      $ git clone
      $ ln -s PhysicsAnpRPC/macros/setup/

      $ source
      $ acm add_pkg PhysicsNtuple/PhysicsAnpData
      $ acm add_pkg PhysicsNtuple/PhysicsAnpBase
      $ acm add_pkg PhysicsAnpRPC
      $ acm compile

      $ mkdir ../run
      $ cd ../run
      $ scp .
      $ python macros/ job_0293_hit.root -o hist.root &> log & 
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Topic revision: r12 - 2019-08-16 - RustemOspanov
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