High spatial resolution gamma imaging detector based on a 5" diameter R3292 Hamamatsu PSPMT

Author

Wojcik, R. ; Majewski, S. ; Kross, B. ; Steinbach, D. ; Weisenberger, A.G.

Author_Institution

Jefferson Lab., Newport News, VA, USA

fYear

1997

fDate

9-15 Nov 1997

Firstpage

221

Abstract

High resolution imaging gamma-ray detectors were developed using Hamamatsu\´s 5" diameter R3292 position sensitive PMT (PSPMT) and a variety of crystal scintillator arrays. Special readout techniques were used to maximize the active imaging area while reducing the number of readout channels. Spatial resolutions approaching 1 mm were obtained in a broad energy range from 20 to 511 keV. Results are also presented of coupling the scintillator arrays to the PMT via imaging light guides consisting of acrylic optical fibers which enables greater design freedom

Keywords

gamma-ray detection; photomultipliers; position sensitive particle detectors; solid scintillation detectors; 1 mm; 20 to 511 keV; 5 in; R3292; acrylic optical fibers; active imaging area; crystal scintillator; high spatial resolution gamma imaging detector; imaging light guides; position sensitive photomultiplier tube; readout; readout channels; spatial resolution; Gamma ray detection; Gamma ray detectors; High-resolution imaging; Optical arrays; Optical coupling; Optical design; Optical fibers; Optical imaging; Sensor arrays; Spatial resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1997. IEEE

Conference_Location

Albuquerque, NM

ISSN

1082-3654

Print_ISBN

0-7803-4258-5

Type

conf

DOI

10.1109/NSSMIC.1997.672573

Filename

672573