Unipolar charge sensing with coplanar electrodes -- Application to semiconductor detectors

Journal Article · Tue Aug 01 00:00:00 EDT 1995 · IEEE Transactions on Nuclear Science

DOI:https://doi.org/10.1109/23.467848· OSTI ID:129121

Luke, P N ^[1]

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

A novel method to perform preferential sensing of single-polarity charge carriers in ionization detectors is presented. It achieves the same function as Frisch grids commonly employed in gas ion chambers but uses a coplanar electrode configuration suitable for semiconductor detectors. Through the use of this method, good energy resolution can be obtained from room-temperature compound semiconductor detectors despite their poor hole-collection characteristics. Experiments using a CdZnTe detector demonstrate the effectiveness of this technique. Schemes to correct for electron trapping and to obtain position information are also described.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 129121
• Report Number(s): CONF-941061--
• Journal Information: IEEE Transactions on Nuclear Science, Journal Name: IEEE Transactions on Nuclear Science Journal Issue: 4Pt1 Vol. 42; ISSN IETNAE; ISSN 0018-9499
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
CADMIUM TELLURIDES
CARRIER MOBILITY
CHARGE CARRIERS
ENERGY RESOLUTION
HOLES
SEMICONDUCTOR DETECTORS
ZINC TELLURIDES