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Detection system for high-resolution gamma radiation spectroscopy with neutron time-of-flight filtering

Patent ·
OSTI ID:1166754
; ;

A .gamma.-radiation detection system that includes at least one semiconductor detector such as HPGe-Detector, a position-sensitive .alpha.-Detector, a TOF Controller, and a Digitizer/Integrator. The Digitizer/Integrator starts to process the energy signals of a .gamma.-radiation sent from the HPGe-Detector instantly when the HPGe-Detector detects the .gamma.-radiation. Subsequently, it is determined whether a coincidence exists between the .alpha.-particles and .gamma.-radiation signal, based on a determination of the time-of-flight of neutrons obtained from the .alpha.-Detector and the HPGe-Detector. If it is determined that the time-of-flight falls within a predetermined coincidence window, the Digitizer/Integrator is allowed to continue and complete the energy signal processing. If, however, there is no coincidence, the Digitizer/Integrator is instructed to be clear and reset its operation instantly.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-98CH10886
Assignee:
Brookhaven Science Associates, LLC (Upton, NY)
Patent Number(s):
8,921,801
Application Number:
13/343,294
OSTI ID:
1166754
Country of Publication:
United States
Language:
English

References (2)

Measurement of 14 MeV neutron-induced prompt gamma-ray spectra from 15 elements found in cargo containers journal April 2008
Gamma-ray imaging with a coaxial HPGe detector
  • Niedermayr, T.; Vetter, K.; Mihailescu, L.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 553, Issue 3, p. 501-511 https://doi.org/10.1016/j.nima.2005.07.017
journal November 2005

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY