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Title: High-efficiency scintillation detector for combined of thermal and fast neutrons and gamma radiation

Abstract

A scintillation based radiation detector for the combined detection of thermal neutrons, high-energy neutrons and gamma rays in a single detecting unit. The detector consists of a pair of scintillators sandwiched together and optically coupled to the light sensitive face of a photomultiplier tube. A light tight radiation pervious housing is disposed about the scintillators and a portion of the photomultiplier tube to hold the arrangement in assembly and provides a radiation window adjacent the outer scintillator through which the radiation to be detected enters the detector. The outer scintillator is formed of a material in which scintillations are produced by thermal-neutrons and the inner scintillator is formed of a material in which scintillations are produced by high-energy neutrons and gamma rays. The light pulses produced by events detected in both scintillators are coupled to the photomultiplier tube which produces a current pulse in response to each detected event. These current pulses may be processed in a conventional manner to produce a count rate output indicative of the total detected radiation even count rate. Pulse discrimination techniques may be used to distinguish the different radiations and their energy distribution.

Inventors:
; ;
Issue Date:
Research Org.:
US Department of Energy (USDOE), Washington DC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176594
Patent Number(s):
H000590
Assignee:
United States Of America, Department Of Energy
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Chiles, Marion M., Mihalczo, John T., and Blakeman, Edward D. High-efficiency scintillation detector for combined of thermal and fast neutrons and gamma radiation. United States: N. p., 1989. Web.
Chiles, Marion M., Mihalczo, John T., & Blakeman, Edward D. High-efficiency scintillation detector for combined of thermal and fast neutrons and gamma radiation. United States.
Chiles, Marion M., Mihalczo, John T., and Blakeman, Edward D. Tue . "High-efficiency scintillation detector for combined of thermal and fast neutrons and gamma radiation". United States. https://www.osti.gov/servlets/purl/1176594.
@article{osti_1176594,
title = {High-efficiency scintillation detector for combined of thermal and fast neutrons and gamma radiation},
author = {Chiles, Marion M. and Mihalczo, John T. and Blakeman, Edward D.},
abstractNote = {A scintillation based radiation detector for the combined detection of thermal neutrons, high-energy neutrons and gamma rays in a single detecting unit. The detector consists of a pair of scintillators sandwiched together and optically coupled to the light sensitive face of a photomultiplier tube. A light tight radiation pervious housing is disposed about the scintillators and a portion of the photomultiplier tube to hold the arrangement in assembly and provides a radiation window adjacent the outer scintillator through which the radiation to be detected enters the detector. The outer scintillator is formed of a material in which scintillations are produced by thermal-neutrons and the inner scintillator is formed of a material in which scintillations are produced by high-energy neutrons and gamma rays. The light pulses produced by events detected in both scintillators are coupled to the photomultiplier tube which produces a current pulse in response to each detected event. These current pulses may be processed in a conventional manner to produce a count rate output indicative of the total detected radiation even count rate. Pulse discrimination techniques may be used to distinguish the different radiations and their energy distribution.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {2}
}