GEANT4 simulation for modelling the optics of LaBr scintillation imagers

Author

Meo, Sergio Lo ; Baldazzi, Giuseppe ; Bennati, Paolo ; Bollini, Dante ; Cencelli, Valentino Orsolini ; Cinti, Maria N. ; Lanconelli, Nico ; Moschini, Giuliano ; Navarria, Francesco L. ; Pani, Roberto ; Pellegrini, Rosanna ; Perrotta, Andrea ; Vittorini, F

Author_Institution

INFN Bologna and Physics Dpt. Alma Mater Studiorum University of Bologna, (Italy)

fYear

2008

fDate

19-25 Oct. 2008

Firstpage

4964

Lastpage

4968

Abstract

The excellent scintillation properties of the LaBr3:Ce crystals makes their use very attractive in a system of gamma imaging for Single Photon Emission Tomography (SPET) applications. In this work we use GEANT4 simulations, in order to better understand the intrinsic properties of a gamma camera based on LaBr3:Ce crystals, coupled to a Hamamatsu H8500 Multi Anodes Photomultiplier (MA-PMT). All electromagnetic process are simulated, together with the detection of the scintillation light distribution on the anodic plane of a MAPMT. The position linearity response, the spatial and energy resolutions are investigated. The values obtained by Monte Carlo show a good agreement with the experimental results.

Keywords

Anodes; Cameras; Energy resolution; Linearity; Optical imaging; Photomultipliers; Photonic crystals; Single photon emission computed tomography; Solid scintillation detectors; Stimulated emission; GEANT4; LaBr3:Ce; Monte Carlo; Optical Photons; Photodetection; UNIFIED;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2008. NSS '08. IEEE

Conference_Location

Dresden, Germany

ISSN

1095-7863

Print_ISBN

978-1-4244-2714-7

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2008.4774354

Filename

4774354