LUXE Test Beam Needs

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  • Distinguish the goals of the 3 years where we could do test beams:
    • 2021: R&D.
    • 2022: R&D - common DAQ integration.
    • 2023: Common DAQ integration - detector validation - combined test beam.
       
  • It would be nice if all the detector test beams are announced in advance to allow parasitic participation by another subsystem.
     
  • Up to now in DESY the test-beam facility had 3 independent lines with electrons of energy (1 - 6  GeV) but with particle multiplicity of 10^3 - 10^4 ( https://particle-physics.desy.de/test_beams_at_desy/ ).
    • A new line (R-Weg using dumped beam) is being developed that will allow high particle multiplicity ( 10^8 - 10^10) in energy range (0.5 - 6.5) GeV.
      • Not completely clear when it will be available (early 2022?), and what the beam parameter will be, in particular what can be changed, and what will be the beam size.
        • Will ask test beam coordinators.
           
  • Halina added test beam facilities at the end of the agenda.
     
  • For simplicity let’s call 10^3 - 10^4 single particles test beam and 10^7 - 10^9 high rate test beams.
     
  • Since one need to ask now if one want some test beam time in 2021, here are the wishes for the people that participated:
     
  • Calorimeter: want to test new GaAs and Calice Si sensors.
    • Want to do a single particles test beam campaign in fall 2021.
       
  • Cherenkov: want to perform
    • In Fall 2021 joining single test beam campaign will be enough, high rate test in 2022 in DESY if available.
       
  • Scintillating screen: Buying equipment (camera+screen) now.
    • In Fall 2021 could join single particles test beam campaign for now to exercise DAQ.
    • High rate tests have already been done at CERN with similar technology and particles multiplicity so no rush to retest it for now.
       
  • Backscattering calorimeter:
    • Want to irradiate Lead glace blocks. Will look where and how to do it.
    • In parallel need to start putting together a lab soon to allow working on experimental setup.
       
  • Tracker:
    • May want to join single particles test beams if feel confident with module received now, but no strong commitments for now.
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