Detection of nuclear materials

D Inbar - US Patent 8,173,970, 2012 - Google Patents
A method for detecting Special Nuclear Materials (SNM) or Radiological dispersion Devices
(RDD), comprising: conveying an object along a predetermined path; imaging a distribution …

High-resolution virtual Frisch grid gamma-ray detectors based on as-grown CdZnTeSe with reduced defects

UN Roy, GS Camarda, Y Cui, RB James - Applied Physics Letters, 2019 - pubs.aip.org
X-and gamma-ray detectors are increasingly becoming essential tools for science and
technology in various fields. These detectors offer broad applications such as homeland …

Single-charge-carrier-type sensing with an insulated Frisch ring CdZnTe semiconductor radiation detector

WJ McNeil, DS McGregor, AE Bolotnikov… - Applied Physics …, 2004 - pubs.aip.org
Performance optimization of an insulated Frisch ring design was investigated for a 3× 3× 6
mm CdZnTe planar semiconductor detector. The Frisch ring was composed of copper and …

Performance-limiting defects in CdZnTe detectors

AE Bolotnikov, GS Camarda, GA Carini… - … on Nuclear Science, 2007 - ieeexplore.ieee.org
We studied the effects of small,< 20 mum, Te inclusions on the energy resolution of CdZnTe
gamma-ray detectors using a highly collimated X-ray beam and gamma-rays, and modeled …

[HTML][HTML] CdZnTe position-sensitive drift detectors with thicknesses up to 5 cm

AE Bolotnikov, GS Camarda, E Chen, S Cheng… - Applied Physics …, 2016 - pubs.aip.org
We investigated the feasibility of long-drift-time CdZnTe (CZT) gamma-ray detectors,
fabricated from CZT material produced by Redlen Technologies. CZT crystals with cross …

Gas-filled neutron detectors having improved detection efficiency

DS McGregor, SL Bellinger, WJ McNeil… - US Patent …, 2013 - Google Patents
Surfaces or surface portions incorporated into gas-filled neutron detectors are coated with
and/or composed of at least partially, neutron reactive material. The surfaces may be flat or …

Performance characteristics of Frisch-ring CdZnTe detectors

AE Bolotnikov, GC Camarda, GA Carini… - … on Nuclear Science, 2006 - ieeexplore.ieee.org
The performance characteristics of Frisch-ring CdZnTe (CZT) detectors are described and
compared with other types of CZT devices. The Frisch-ring detector is a bar-shaped CZT …

CdZnTe Frisch collar detectors for γ-ray spectroscopy

A Kargar, AM Jones, WJ McNeil, MJ Harrison… - Nuclear Instruments and …, 2006 - Elsevier
Low-energy γ-ray spectra were collected from 241Am, 57Co, 133Ba, 198Au, 137Cs and
235U using a 3.4× 3.4× 5.7 mm3 CdZnTe detector utilizing an insulated Frisch ring. The …

Gas-filled neutron detectors and imaging system and array of such detectors

DS McGregor, SL Bellinger, KA Nelson - US Patent 9,817,138, 2017 - Google Patents
Gas-filled neutron detectors, an imaging system and an array of such detectors are provided.
Surfaces or surface portions incorporated into the gas-filled neutron detectors are coated …

Optimization of virtual Frisch-grid CdZnTe detector designs for imaging and spectroscopy of gamma rays

AE Bolotnikov, NM Abdul-Jabbar… - Hard X-Ray and …, 2007 - spiedigitallibrary.org
In the past, various virtual Frisch-grid designs have been proposed for cadmium zinc
telluride (CZT) and other compound semiconductor detectors. These include three-terminal …