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Title: High-Efficiency CdZnTe Position-Sensitive VFG Gamma-Ray Detectors for Safeguards Applications

Abstract

The goal of this project is to incorporate a Cadmium-Zinc-Telluride (CdZnTe or CZT) detector (with 1% or better resolution) into a bench-top prototype for isotope identification and related safeguards applications. The bench-top system is based on a 2x2 array of 6x6x20 mm 3 position-sensitive virtual Frisch-grid (VFG) CZT detectors. The key features of the array are that it allows for the use of average-grade CZT material with a moderate content of defects, and yet it provides high energy resolution, 1% FWHM at 662 keV, large effective area, and low-power consumption. The development of this type of 3D detector and new instruments incorporating them is motivated by the high cost and low availability of large, > 1 cm 3, CZT crystals suitable for making multi-pixel detectors with acceptable energy resolution and efficiency.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20)
Contributing Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
1328361
Report Number(s):
BNL-112190-2015
TRN: US1700349
DOE Contract Number:  
SC0012704
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; ENERGY RESOLUTION; GAMMA DETECTION; CADMIUM TELLURIDES; SAFEGUARDS; KEV RANGE 100-1000; ZINC TELLURIDES; ISOTOPE RATIO; POSITION SENSITIVE DETECTORS; CdZnTe; Position-Sensitive; VFG Gamma-Ray Detectors; Safeguards Applications

Citation Formats

Bolotnikov, Aleksey E., James, Ralph B., Cui, Y., De Geronimo, G., Vernon, E., Camarda, G. S., Hossain, A., Yang, G., Indusi, J., and Boyer, Brian. High-Efficiency CdZnTe Position-Sensitive VFG Gamma-Ray Detectors for Safeguards Applications. United States: N. p., 2015. Web. doi:10.2172/1328361.
Bolotnikov, Aleksey E., James, Ralph B., Cui, Y., De Geronimo, G., Vernon, E., Camarda, G. S., Hossain, A., Yang, G., Indusi, J., & Boyer, Brian. High-Efficiency CdZnTe Position-Sensitive VFG Gamma-Ray Detectors for Safeguards Applications. United States. doi:10.2172/1328361.
Bolotnikov, Aleksey E., James, Ralph B., Cui, Y., De Geronimo, G., Vernon, E., Camarda, G. S., Hossain, A., Yang, G., Indusi, J., and Boyer, Brian. Wed . "High-Efficiency CdZnTe Position-Sensitive VFG Gamma-Ray Detectors for Safeguards Applications". United States. doi:10.2172/1328361. https://www.osti.gov/servlets/purl/1328361.
@article{osti_1328361,
title = {High-Efficiency CdZnTe Position-Sensitive VFG Gamma-Ray Detectors for Safeguards Applications},
author = {Bolotnikov, Aleksey E. and James, Ralph B. and Cui, Y. and De Geronimo, G. and Vernon, E. and Camarda, G. S. and Hossain, A. and Yang, G. and Indusi, J. and Boyer, Brian},
abstractNote = {The goal of this project is to incorporate a Cadmium-Zinc-Telluride (CdZnTe or CZT) detector (with 1% or better resolution) into a bench-top prototype for isotope identification and related safeguards applications. The bench-top system is based on a 2x2 array of 6x6x20 mm3 position-sensitive virtual Frisch-grid (VFG) CZT detectors. The key features of the array are that it allows for the use of average-grade CZT material with a moderate content of defects, and yet it provides high energy resolution, 1% FWHM at 662 keV, large effective area, and low-power consumption. The development of this type of 3D detector and new instruments incorporating them is motivated by the high cost and low availability of large, > 1 cm3, CZT crystals suitable for making multi-pixel detectors with acceptable energy resolution and efficiency.},
doi = {10.2172/1328361},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {9}
}

Technical Report:

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