scholarly journals Optical photon transport in powdered-phosphor scintillators. Part II. Calculation of single-scattering transport parameters

2013 ◽  
Vol 40 (4) ◽  
pp. 041905 ◽  
Author(s):  
Gavin G. Poludniowski ◽  
Philip M. Evans
Keyword(s):  
Single Scattering ◽  
Transport Parameters ◽  
Photon Transport ◽  
Optical Photon

Experimental validation of the ANTS2 code for modelling optical photon transport in monolithic LYSO crystals

2021 ◽  
Vol 81 ◽  
pp. 215-226
Author(s):  
Víctor Manuel Lara-Camacho ◽  
Edgar Marcial Hernández-Acevedo ◽  
Héctor Alva-Sánchez ◽  
Tirso Murrieta-Rodríguez ◽  
Arnulfo Martínez-Dávalos ◽  
...  
Keyword(s):  
Experimental Validation ◽  
Photon Transport ◽  
Optical Photon

scholarly journals A Geant4 Fano test for novel very high energy electron beams

2021 ◽  
Author(s):  
Michael McManus ◽  
Francesco Romano ◽  
Gary J Royle ◽  
Hugo Palmans ◽  
Anna Subiel
Keyword(s):  
Charged Particle ◽  
Particle Transport ◽  
Single Scattering ◽  
High Energy ◽  
General Purpose ◽  
Boundary Crossing ◽  
Monte Carlo Code ◽  
Transport Parameters ◽  
Step Size ◽  
Charged Particle Transport

Abstract Objective: The boundary crossing algorithm available in Geant4 10.07-p01 general purpose Monte Carlo code has been investigated for a 12 MeV and 200 MeV electron source by the application of a Fano cavity test. Approach: Fano conditions were enforced through all simulations whilst varying individual charged particle transport parameters which control particle step size, ionisation and single scattering. Main Results: At 12 MeV, Geant4 was found to return excellent dose consistency within 0.1% even with the default parameter configurations. The 200 MeV case, however, showed significant consistency issues when default physics parameters were employed with deviations from unity of more than 6%. The effect of the inclusion of nuclear interactions was also investigated for the 200 MeV beam and was found to return good consistency for a number of parameter configurations. Significance: The Fano test is a necessary investigation to ensure the consistency of charged particle transport available in Geant4 before detailed detector simulations can be conducted.

Optical photon transport and geometry contributions to time response of scintillation detectors

2018 ◽  
Vol 29 (09) ◽  
pp. 1850091
Author(s):  
N. Ghal-Eh ◽  
M. Aliannezhadi ◽  
S. V. Bedenko
Keyword(s):  
General Purpose ◽  
Optical Parameters ◽  
Scintillation Detectors ◽  
Light Wavelength ◽  
Scintillation Light ◽  
Simulation Code ◽  
Photon Transport ◽  
Optical Photon ◽  
Small Change ◽  
Time And Energy

The sensitivities of both time and energy resolutions of a typical scintillation detector to major optical parameters (i.e. paint reflectivity, quantum efficiency of photomultiplier tube and attenuation coefficient) have been estimated using a dedicated Monte Carlo (MC) optical photon transport (OPT) simulation code, PHOTRACK, and the OPT capabilities of general-purpose code, FLUKA. Both cylindrical and parallelepiped geometries have been considered for the scintillator cell and lightguide. The results determine the scintillation light wavelength regions that the energy and time resolution represent enhanced sensitivities to small change/uncertainty in optical parameters.

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