Optimization criteria for coplanar-grid detectors

Journal Article · Tue Jun 01 04:00:00 EDT 1999 · IEEE Transactions on Nuclear Science

DOI:https://doi.org/10.1109/23.775515· OSTI ID:679556

Amman, M; Luke, P N ^[1]

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1. Lawrence Berkeley National Lab., CA (United States)

The coplanar-grid charge-sensing technique is a powerful method to achieve excellent spectroscopic performance with large-volume, CdZnTe-based, gamma-ray detectors despite the poor charge transport characteristics of the CdZnTe material. Critical to the success of the technique are the charge induction characteristics of the sensing-grid electrodes as governed by the detector geometry and the grid design. In this paper the authors demonstrate through numerical calculations of the detector response that the criteria for optimizing the grid design depend on the particular method in which the coplanar-grid technique is implemented. The authors present the fundamental design criteria in terms of the desired charge induction on the grid electrodes for the commonly used coplanar-grid implementations.

• OSTI ID: 679556
• Report Number(s): CONF-981110--
• Journal Information: IEEE Transactions on Nuclear Science, Journal Name: IEEE Transactions on Nuclear Science Journal Issue: 3Pt1 Vol. 46; ISSN 0018-9499; ISSN IETNAE
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
CADMIUM TELLURIDES
DESIGN
ELECTRODES
GAMMA SPECTROMETERS
SEMICONDUCTOR DETECTORS
ZINC TELLURIDES