Comparison of radiation damage between FLUKA and Geant

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  • Photon energy spectrum used in the simulations (photon flux corresponds to high-luminosity run)

Photon spectrum.jpg

  • Silicon damage function used by FLUKA

Damage function.jpg

  • Particle spectra 75 cm downstream from SiPM - RADCON GEANT
GEANT


  • Particle spectra in SiPM - FLUKA
FLUKA
FLUKA


  • 1-MeV neutron equivalent (Si) fluences
FLUKA. Beam power at the target = 0.704 W
FLUKA. Beam power at the target = 0.704 W


FLUKA. Si PM limited by two circles with radii of 65 cm and 90 cm


FLUKA. Beam power at the target = 0.704 W
FLUKA. Beam power at the target = 0.704 W


  • Dose equivalent rate
FLUKA. Beam power at the target = 0.704 W


  • Particles per cm^2 per second in terms of 1-MeV neutron equivalent in Si estimated with FLUKA simulation (Photon beam power at target = .704 W)
Total Neutrons Protons Pions Electrons Positrons
22.91 ± 0.18 18.04 ± 0.12 1.72 ± 0.03 1.80 ± 0.01 1.01 ± 0.19 0.19 ± 0.03


  • GEANT simulations estimated neutron fluence (1-MeV neutron equivalent in Si) of 30.5 n/cm^2/sec 75 cm downstream from SiPM. FLUKA simulations estimated 16.9 n/cm^-2/sec in the same location.