Recent developments in thick mercuric iodide spectrometers
Abstract
Thick (approx. 1 cm) mercuric iodide gamma-ray detectors have been produced which show spectroscopic qualities at moderate detector biases (approx. 5 kV) comparable to those of thin spectrometers. Efficiency measurements indicate that the entire volume of the detectors is active. Spectra resolutions of less than 10% have been obtained for gamma-ray energies above 1 MeV. Short charge collection times have produced the best results. Measurement of crystal charge transport properties is discussed. A small amount of bias conditioning is necessary for best performance. Operating parameters of the detectors have been investigated.
- Publication:
-
Presented at the IEEE Nucl. Sci. Symp
- Pub Date:
- 1982
- Bibcode:
- 1982nusc.sympQ....H
- Keywords:
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- Fabrication;
- Gamma Ray Spectrometers;
- Iodides;
- Mercury Compounds;
- Charge Transfer;
- Efficiency;
- Microgravity Applications;
- Signal To Noise Ratios;
- Single Crystals;
- Space Commercialization;
- Thickness;
- Instrumentation and Photography