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Proceedings Paper

Virtual Frisch-grid ionization chambers filled with high-pressure Xe
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Paper Abstract

New approaches to the design of high-pressure Xe (HPXe) ionization chambers are described. HPXe ionization chambers represent a well-known technique for detecting gamma rays in the energy range between 50 keV and 3 MeV. Since the HPXe detector is an electron-only carrier device, its commonly accepted design includes a Frisch-grid-a metal mesh employed for the electrostatic shielding from the immobile positive ions. The grid is a key element of the device’s design which provides good energy resolution of the detector, typically 2-3% FWHM at 662 keV. However, the grid makes the design more complex and less rugged, especially for field applications. Recently, we developed several designs of HPXe ionization chambers without shielding grids. The results obtained from the testing of these devices are presented here.

Paper Details

Date Published: 21 October 2004
PDF: 9 pages
Proc. SPIE 5540, Hard X-Ray and Gamma-Ray Detector Physics VI, (21 October 2004); doi: 10.1117/12.564432
Show Author Affiliations
Aleksey E. Bolotnikov, Brookhaven National Lab. (United States)
Robert Austin, Constellation Technology Corp. (United States)
Alexander Bolozdynya, Constellation Technology Corp. (United States)
John D. Richards, Constellation Technology Corp. (United States)

Published in SPIE Proceedings Vol. 5540:
Hard X-Ray and Gamma-Ray Detector Physics VI
Arnold Burger; Ralph B. James; Larry A. Franks, Editor(s)

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