High-Efficiency CdZnTe Position-Sensitive VFG Gamma-Ray Detectors for Safeguards Applications
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
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.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20)
- Contributing Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- SC0012704
- OSTI ID:
- 1328361
- Report Number(s):
- BNL--112190-2015
- Country of Publication:
- United States
- Language:
- English
Similar Records
CZT nanoRAIDER_VFG Factsheet
24.1.3.1.1 - Frisch Grid CZT Spectrometer
Related Subjects
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
CADMIUM TELLURIDES
CdZnTe
ENERGY RESOLUTION
GAMMA DETECTION
ISOTOPE RATIO
KEV RANGE 100-1000
POSITION SENSITIVE DETECTORS
Position-Sensitive
SAFEGUARDS
Safeguards Applications
VFG Gamma-Ray Detectors
ZINC TELLURIDES