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Geant4 Geometry and Simulation

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Detectors and pressure vessel are implemented. Now ... Next: bombard particle aimed at gondola. Cosmic-ray Generator. Downward proton. Downward electron ... – PowerPoint PPT presentation

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Title: Geant4 Geometry and Simulation


1
Geant4 Geometry and Simulation
  • May/31/2001
  • GLAST Balloon Analysis VRVS meeting
  • Tsunefumi Mizuno
  • mizuno_at_hirax6.hepl.hiroshima-u.ac.jp
  • mizuno_at_SLAC.Stanford.EDU

2
Detector Geometry
  • Detectors and pressure vessel are implemented
  • Now shooting cosmic-ray proton/electron to verify
  • the simulator and to study background
  • Gondola is almost ready
  • Next bombard particle aimed at gondola

3
Cosmic-ray Generator
  • Proton and electron generator are constructed
    based on AMS/BESS experiment
  • Solar modulation and geomagnetic effect are
    implemented on primary component

Downward proton
Downward electron
4
Proton aimed at 4 XGTs
(here, albedo means reentrantsplash)
About 6 of protons aimed at XGTs will give
level1 trigger
5
Proton aimed at 4 XGTs
1M events run (2.5M protons in 6 hours)
(here, albedo means reentrantsplash)
3k L1T events (0.3-0.4Hz)
60k L1T events (7Hz)
upward
downward
6
Proton aimed at Pressure Vessel
500k events run (15k/s when aimed at PV)
(here, albedo means reentrantsplash)
10-15Hz L1T
200Hz L1T
upward
downward
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