High Pressure XENON Gamma-Ray Spectrometers for Field Use

Wehe, David K. ; He, Zong ; Knoll, Glenn K.

University of Michigan. Regents.

关键词: Energy Resolution;    46 Instrumentation Related To Nuclear Science And Technology;    Xenon;    Ionization Chambers;    Gamma Spectrometers;   

DOI  :  10.2172/821711
RP-ID  :  DOE/ID/13772
RP-ID  :  FG07-99ID13772
RP-ID  :  821711

美国|英语

来源: UNT Digital Library

【 摘 要 】

This project explored a new concept for high-pressure xenon ionization chambers by replacing the Frisch grid with coplanar grid electrodes similar to those used in wide bandgap semiconductor gamma-ray spectrometers. This work is the first attempt to apply the coplanar grid anode design in a gas ionization chamber in order to achieve to improved energy resolution. Three prototype detectors, two cylindrical and one parallel plate configurations, were built and tested. While the detectors did not demonstrate energy resolutions as good as other high pressure xenon gamma-ray spectrometers, the results demonstrated that the concept of single polarity charge sending using coplanar grid electrodes will work in a gas detector.