Monte Carlo investigation of the charge sharing effects in 3-D position sensitive CdZnTe gamma ray spectrometers
Journal Article
·
· IEEE Transactions on Nuclear Science
- Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Nuclear Engineering and Radiological Science
Charge sharing effects in a 3-D position sensitive CdZnTe detector have been investigated by Monte Carlo simulations and experimental measurements. The charge sharing is mainly caused by the range of electrons, x-ray emission following by photoelectric interactions, and the diffusion of charge carrier electrons during their drift towards the anodes. A simple model has been developed to include the diffusion effect in the Monte Carlo simulation. Good agreement has been achieved for various irradiation and bias conditions. Based on the model simulations, a 1 mm optimal pixel size is recommended for future 1 cm thick CZT detectors for 662 keV gamma rays.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG08-98NV13357
- OSTI ID:
- 684543
- Report Number(s):
- CONF-981110-; ISSN 0018-9499; TRN: 99:010070
- Journal Information:
- IEEE Transactions on Nuclear Science, Vol. 46, Issue 4Pt1; Conference: 1998 IEEE nuclear science symposium and medical imaging conference, Toronto (Canada), 10-12 Nov 1998; Other Information: PBD: Aug 1999
- Country of Publication:
- United States
- Language:
- English
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