DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Neutron coincidence detectors employing heterogeneous materials

Abstract

A neutron detector relies upon optical separation of different scintillators to measure the total energy and/or number of neutrons from a neutron source. In pulse mode embodiments of the invention, neutrons are detected in a first detector which surrounds the neutron source and in a second detector surrounding the first detector. An electronic circuit insures that only events are measured which correspond to neutrons first detected in the first detector followed by subsequent detection in the second detector. In spectrometer embodiments of the invention, neutrons are thermalized in the second detector which is formed by a scintillator-moderator and neutron energy is measured from the summed signals from the first and second detectors.

Inventors:
 [1];  [2]
  1. Mapleton, UT
  2. Orem, UT
Issue Date:
Research Org.:
Brigham Young Univ., Provo, UT (United States)
OSTI Identifier:
868873
Patent Number(s):
5231290
Application Number:
07/899,031
Assignee:
Brigham Young University (Provo, UT)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
DOE Contract Number:  
FG02-90ER12105
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
neutron; coincidence; detectors; employing; heterogeneous; materials; detector; relies; optical; separation; scintillators; measure; total; energy; neutrons; source; pulse; mode; embodiments; detected; surrounds; surrounding; electronic; circuit; insures; events; measured; correspond; followed; subsequent; detection; spectrometer; thermalized; formed; scintillator-moderator; summed; signals; neutron energy; total energy; electronic circuit; neutron detector; neutron source; optical separation; subsequent detection; neutron coincidence; pulse mode; coincidence detector; /250/376/

Citation Formats

Czirr, J Bartley, and Jensen, Gary L. Neutron coincidence detectors employing heterogeneous materials. United States: N. p., 1993. Web.
Czirr, J Bartley, & Jensen, Gary L. Neutron coincidence detectors employing heterogeneous materials. United States.
Czirr, J Bartley, and Jensen, Gary L. Fri . "Neutron coincidence detectors employing heterogeneous materials". United States. https://www.osti.gov/servlets/purl/868873.
@article{osti_868873,
title = {Neutron coincidence detectors employing heterogeneous materials},
author = {Czirr, J Bartley and Jensen, Gary L},
abstractNote = {A neutron detector relies upon optical separation of different scintillators to measure the total energy and/or number of neutrons from a neutron source. In pulse mode embodiments of the invention, neutrons are detected in a first detector which surrounds the neutron source and in a second detector surrounding the first detector. An electronic circuit insures that only events are measured which correspond to neutrons first detected in the first detector followed by subsequent detection in the second detector. In spectrometer embodiments of the invention, neutrons are thermalized in the second detector which is formed by a scintillator-moderator and neutron energy is measured from the summed signals from the first and second detectors.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Works referenced in this record:

Observation of cold nuclear fusion in condensed matter
journal, April 1989


Shift-register coincidence electronics system for thermal neutron counters
journal, October 1980


New electronically black neutron detectors
journal, July 1986

  • Drake, D. M.; Feldman, W. C.; Hurlbut, C.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 247, Issue 3
  • https://doi.org/10.1016/0168-9002(86)90419-5

The parameters of the full absorption neutron spectrometer
journal, September 1990

  • Filchenkov, V. V.; Konin, A. D.; Rudenko, A. I.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 294, Issue 3
  • https://doi.org/10.1016/0168-9002(90)90291-D

A fast-neutron detector used in verification of the INF Treaty
journal, December 1990

  • Ewing, Ronald I.; Marlow, Keith W.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 299, Issue 1-3
  • https://doi.org/10.1016/0168-9002(90)90843-U

A neutron coincidence spectrometer
journal, December 1989

  • Czirr, J. Bart; Jensen, Gary L.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 284, Issue 2-3
  • https://doi.org/10.1016/0168-9002(89)90303-3

A moderating 6Li-glass neutron detector
journal, March 1984


Thermal neutron detection and identification in a large volume with a new lithium-6 loaded liquid scintillator
journal, May 1989

  • Ait-Boubker, S.; Avenier, M.; Bagieu, G.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 277, Issue 2-3
  • https://doi.org/10.1016/0168-9002(89)90775-4

Measurement of fast neutrons in the Gran Sasso laboratory using a 6Li doped liquid scintillator
journal, January 1989

  • Aleksan, R.; Bouchez, J.; Cribier, M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 274, Issue 1-2
  • https://doi.org/10.1016/0168-9002(89)90380-X

Multi-energy neutron detector for counting thermal neutrons, high-energy neutrons, and gamma photons separately
journal, June 1990


Monte Carlo and experimental evaluation of BC-454 for use as a multienergy neutron detector
journal, June 1990


Gamma-ray sensitivity of 6Li-glass scintillators
journal, February 1983


A Neutron Multiplicity Counter for Plutonium Assay
journal, April 1990


A new technique for capture and fission cross-section measurements
journal, July 1969


A High-Performance Neutron Time Correlation Counter
journal, November 1985