Evaluation of TlBr detectors with Tl electrodes

Keitaro Hitomi; Yohei Kikuchi; Tadayoshi Shoji; Keizo Ishii

doi:10.1117/12.794381

4 September 2008 Evaluation of TlBr detectors with Tl electrodes

Keitaro Hitomi, Yohei Kikuchi, Tadayoshi Shoji, Keizo Ishii

Proceedings Volume 7079, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics X; 70790J (2008) https://doi.org/10.1117/12.794381
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

Long-term stability of TlBr detectors with Tl electrodes was evaluated in this study. Tl/TlBr/Tl detectors were fabricated and tested with a charge sensitive preamplifier and a spectroscopy amplifier and a gated integrator. Significant improvement of energy resolutions was realized by applying the gated integrator to the TlBr detectors. The full-energy peak positions, counts and resolutions for 662 keV gamma-rays from ¹³⁷Cs were monitored during the course of measurements (10 days). By changing the polarity of the applied bias voltages every 24 hours, the Tl/TlBr/Tl detectors exhibited stable spectroscopic performance for totally over 240 hours.

Citation Download Citation

Keitaro Hitomi, Yohei Kikuchi, Tadayoshi Shoji, and Keizo Ishii "Evaluation of TlBr detectors with Tl electrodes", Proc. SPIE 7079, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics X, 70790J (4 September 2008); https://doi.org/10.1117/12.794381

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