$W _{s}$ Values in Several Inorganic Scintillation Crystals for Gamma Rays

Author

Sasaki, Shinichi ; Tawara, Hiroko ; Saito, Kiwamu ; Shibamura, Eido

Author_Institution

High Energy Accel. Res. Organ. (KEK), Tsukuba, Japan

Volume

57

Issue

3

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

1282

Lastpage

1286

Abstract

The average energy required to produce one scintillation photon W_s was determined for 662 keV gamma rays in CsI(Tl), CsI(Na), PWO, BGO, YAP(Ce), LSO(Ce), GSO(Ce), CWO, and LaBr₃(Ce) crystals from the number of photoelectrons measured by a combination of a crystal and a photomultiplier tube (PMT). The number of scintillation photons was obtained by calculating the collection and conversion efficiency of photons at the PMT photocathode using Monte Carlo simulations and by determining experimentally the photon-to-photoelectron conversion efficiency at the photocathode. W_s determined for CsI(Tl) in the present study agrees well with the theoretical value presented recently.

Keywords

Monte Carlo methods; gamma-ray detection; photocathodes; photomultipliers; solid scintillation detectors; BGO crystal; CWO crystal; CsI(Na) crystal; CsI(Tl) crystal; GSO(Ce) crystal; LSO(Ce) crystal; LaBr₃(Ce) crystal; Monte Carlo simulations; PMT photocathode; PWO crystal; W_s values; YAP(Ce) crystal; average energy; electron volt energy 662 keV; gamma rays; inorganic scintillation crystals; photoelectron number; photomultiplier tube; photon-to-photoelectron conversion efficiency; scintillation photon; Cathodes; Energy measurement; Gamma rays; Luminescence; Optical refraction; Optical variables control; Photodetectors; Photomultipliers; Photonic crystals; Reflectivity; $W _{s}$ ; Inorganic scintillator; light output; light yield; scintillation;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2009.2037224

Filename

5485096