Electrode design for coplanar-grid detectors
- Lawrence Berkeley National Lab., CA (United States). Engineering Div.
- Los Alamos National Lab., NM (United States)
The coplanar-grid charge sensing technique provides a method for improving the spectral response of gamma-ray detectors based on compound semiconductors, which typically have poor charge transport properties. The technique functions by effectively modifying the charge induction characteristics of the detector such that the dependence of detector signal on the depth of radiation interaction is minimized. The effectiveness of this technique however can be compromised by non-uniform charge induction characteristics across the detector. This paper examines such non-uniformity due to fringe effects near the detector edges. Alternate electrode configurations are studied that provide effective compensation for such effects. Results from experimental measurements and computer simulations are presented.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- Department of Defense, Washington, DC (United States); USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 459434
- Report Number(s):
- LBL-38609; CONF-9611110-3; ON: DE97003474; TRN: 97:007658
- Resource Relation:
- Conference: 1996 Institute Electronic and Electrical Engineers (IEEE) nuclear science symposium, Los Angeles, CA (United States), 2-15 Nov 1996; Other Information: PBD: Nov 1996
- Country of Publication:
- United States
- Language:
- English
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