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Research & Development in Material Science

Calculation of Carrier Distribution, Space Charge Accumulation, and Internal Electric Field Distribution in CdZnTe Detectors under Extremely High X-Ray Doses

Submission: January 23, 2019; Published: January 29, 2019

DOI: 10.31031/RDMS.2019.09.000720

ISSN: 2576-8840
Volume9 Issue4


We calculated the carrier density, space charge and internal electric field distribution in CdZnTe planar detectors with the consideration of four kinds of defect traps to understand its detection properties under ultrahigh X-ray flux. The results showed that severe space charge collection occurred, and the internal electric field was distorted when the X-ray flux was ultrahigh. This could strongly influence detector performance.

Keywords:Carrier distribution; X-ray detector; CdZnTe crystal

PACS:66.30.J-, 72.20.Jv, 71.55.Gs

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