Development of a high-resolution room-temperature compressed-xenon cylindrical ionization-chamber gamma radiation detector

Gary C. Tepper; Jon R. Losee; Robert L. Palmer

doi:10.1117/12.312881

1 July 1998 Development of a high-resolution room-temperature compressed-xenon cylindrical ionization-chamber gamma radiation detector

Gary C. Tepper, Jon R. Losee, Robert L. Palmer

Author Affiliations +

Proceedings Volume 3446, Hard X-Ray and Gamma-Ray Detector Physics and Applications; (1998) https://doi.org/10.1117/12.312881
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Highly compressed and purified xenon is emerging as an important detection medium for high resolution, room temperature gamma radiation spectroscopy. Detectors based on compressed xenon offer a unique combination of thermal stability, high energy resolution and large volume. Furthermore, fluid based detectors are not susceptible to radiation damage, and can be constructed in a variety of geometries. However, some important factors have delayed the development of practical xenon detectors for widespread use. These factors include the relatively high operational pressures and voltages and the need to maintain extremely high xenon purity. We have recently developed a 0.7 liter gridded ionization chamber xenon gamma radiation detector in a cylindrical geometry. The detector operates at room temperature and provides an intrinsic energy resolution of 1.8% at 662 keV which is five times greater than scintillation based spectrometers. The detector design and performance variables are discussed in comparison to a previous detector constructed in a planar geometry. Our results indicate that practical xenon detectors can now be developed for a wide variety of applications.

Citation Download Citation

Gary C. Tepper, Jon R. Losee, and Robert L. Palmer "Development of a high-resolution room-temperature compressed-xenon cylindrical ionization-chamber gamma radiation detector", Proc. SPIE 3446, Hard X-Ray and Gamma-Ray Detector Physics and Applications, (1 July 1998); https://doi.org/10.1117/12.312881

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