Difference between revisions of "EM background rate studies"

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Data sample:
 
Data sample:
 
* beam photons (no interactions inside the cave)
 
* beam photons (no interactions inside the cave)
* collimator cave background (photon beam hallo background remaining background from the cave)
+
* collimator cave background (photon beam hallo, particles from the cave, ...)
  
 
Subdetector rates (at least one hit in the subdetector)
 
Subdetector rates (at least one hit in the subdetector)

Revision as of 12:53, 8 October 2008

Data sample:

  • beam photons (no interactions inside the cave)
  • collimator cave background (photon beam hallo, particles from the cave, ...)

Subdetector rates (at least one hit in the subdetector)

             Beam background               Cave Background
  • TOF 35.9 MHz 36.8 kHz
  • Start counter 1.86 MHz 1.67 kHz
  • FCAL (Ecell > 30 MeV) 4.25 MHz 6.69 kHz
  • BCAL (Ecell > 20 MeV) 300 kHz 1+-1 kHz