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Primary Examiner: Smith, Alfred E.
Assistant Examiner: Fields, Carolyn E.
Attorney: Denny; James E., Carlson; Dean E., Koch; John A.

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Title: Radiation detection system using semiconductor detector with differential carrier trapping and mobility

Abstract: A system for obtaining improved resolution in relatively thick semiconductor radiation detectors, such as HgI.sub.2, which exhibit significant hole trapping. Two amplifiers are used: the first measures the charge collected and the second the contribution of the electrons to the charge collected. The outputs of the two amplifiers are utilized to unfold the total charge generated within the detector in response to a radiation event.

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Inventors: Whited, Richard C. (Santa Barbara, CA, US)

Application Number: 029964
Filing Date: 1979-04-13
Publication_date: 1981-02-24
Assignee: The United States of America as represented by the United States (Washington, DC)
Primary Class(es): 250/370.12 250/370.01, 250/371
Other Classes:
US Patent Ref:
Other Refs: Other References: Kurz, "A Novel Pulse Processing System for HgI.sub.2 Detectors", Nuc. Instr. and Methods, vol. 150, 1978, pp. 91-95.
Jones et al., "Resolution Improvement in CdTe Gamma Detectors Using Pulse-Shape Discrimination", Nuc. Instr. and Methods, vol. 124, 1975, pp. 591-595.
Krapivin et al., "Pulse Selection to Improve Energy Resolution of Gamma Spectrometers with Cadmium Telluride Detectors", Atomic Energy, vol. 43, No. 1, Jul. 1977, pp. 633-636.