Title :
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
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;
Conference_Titel :
Nuclear Science Symposium, 1997. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
0-7803-4258-5
DOI :
10.1109/NSSMIC.1997.672573
