An integrated photosensor readout for gas proportional scintillation counters

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:513084

Lopes, J A.M. ^[1]; Santos, J M.F. dos; Conde, C A.N. ^[2]

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1. Instituto Superior de Engenharia de Coimbra (Portugal)
2. Universidade de Coimbra (Portugal)

A xenon gas proportional scintillation counter has been instrumented with a novel photosensor that replaces the photomultiplier tube normally used to detect the VUV secondary scintillation light. In this implementation, the collection grid of a planar gas proportional scintillation counter also functions as a multiwire proportional chamber to amplify and detect the photoelectrons emitted by a reflective CsI photocathode in direct contact with the xenon gas. This integrated concept combines greater simplicity, compactness, and ruggedness (no optical window is used) with low power consumption. An energy resolution of 12% was obtained for 59.6 keV x-rays.

• OSTI ID: 513084
• Report Number(s): CONF-961123--; CNN: Project PEDIC/S/SIS/1853/94
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
GAS SCINTILLATION DETECTORS
PHOTOCATHODES
PHOTOMULTIPLIERS
PROPORTIONAL COUNTERS
READOUT SYSTEMS