CDZNTE ROOM-TEMPERATURE SEMICONDUCTOR GAMMA-RAY DETECTOR FOR NATIONAL-SECURITY APPLICATIONS.
One important mission of the Department of Energy's National Nuclear Security Administration is to develop reliable gamma-ray detectors to meet the widespread needs of users for effective techniques to detect and identify special nuclear- and radioactive-materials. Accordingly, the Nonproliferation and National Security Department at Brookhaven National Laboratory was tasked to evaluate existing technology and to develop improved room-temperature detectors based on semiconductors, such as CdZnTe (CZT). Our research covers two important areas: Improving the quality of CZT material, and exploring new CZT-based gamma-ray detectors. In this paper, we report on our recent findings from the material characterization and tests of actual CZT devices fabricated in our laboratory and from materials/detectors supplied by different commercial vendors. In particular, we emphasize the critical role of secondary phases in the current CZT material and issues in fabricating the CZT detectors, both of which affect their performance.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- Doe - Office Of Science
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 909942
- Report Number(s):
- BNL-77678-2007-CP; R&D Project: 10514; NN2001030; TRN: US0704023
- Resource Relation:
- Conference: THIRD ANNUAL IEEE LONG ISLAND SYSTEMS APPLICATIONS AND TECHNOLOGY CONFERENCE (LISAT, 2007); INSTITUTE FOR RESEARCH AND TECHNOLOGY TRANSFER, FARMINGDALE STATE UNIVERSITY, FARMINGDALE, NEW YORK; 20070504 through 20070504
- Country of Publication:
- United States
- Language:
- English
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