skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Subthreshold neutron interrogator for detection of radioactive materials

Abstract

A device for detecting fissionable material such as uranium in low concentrations by interrogating with photoneutrons at energy levels below 500 keV, and typically about 26 keV. Induced fast neutrons having energies above 500 keV by the interrogated fissionable material are detected by a liquid scintillator or recoil proportional counter which is sensitive to the induced fast neutrons. Since the induced fast neutrons are proportional to the concentration of fissionable material, detection of induced fast neutrons indicate concentration of the fissionable material.

Inventors:
 [1];  [1];  [1]
  1. (Los Alamos, NM)
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
863575
Patent Number(s):
4201912
Assignee:
United States of America as represented by United States (Washington, DC) LANL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
subthreshold; neutron; interrogator; detection; radioactive; materials; device; detecting; fissionable; material; uranium; concentrations; interrogating; photoneutrons; energy; levels; below; 500; kev; typically; 26; induced; fast; neutrons; energies; interrogated; detected; liquid; scintillator; recoil; proportional; counter; sensitive; concentration; indicate; proportional counter; fast neutron; radioactive material; energy level; active material; fissionable material; radioactive materials; fast neutrons; active materials; energy levels; liquid scintillator; /376/250/

Citation Formats

Evans, Michael L., Menlove, Howard O., and Baker, Michael P. Subthreshold neutron interrogator for detection of radioactive materials. United States: N. p., 1980. Web.
Evans, Michael L., Menlove, Howard O., & Baker, Michael P. Subthreshold neutron interrogator for detection of radioactive materials. United States.
Evans, Michael L., Menlove, Howard O., and Baker, Michael P. Tue . "Subthreshold neutron interrogator for detection of radioactive materials". United States. https://www.osti.gov/servlets/purl/863575.
@article{osti_863575,
title = {Subthreshold neutron interrogator for detection of radioactive materials},
author = {Evans, Michael L. and Menlove, Howard O. and Baker, Michael P.},
abstractNote = {A device for detecting fissionable material such as uranium in low concentrations by interrogating with photoneutrons at energy levels below 500 keV, and typically about 26 keV. Induced fast neutrons having energies above 500 keV by the interrogated fissionable material are detected by a liquid scintillator or recoil proportional counter which is sensitive to the induced fast neutrons. Since the induced fast neutrons are proportional to the concentration of fissionable material, detection of induced fast neutrons indicate concentration of the fissionable material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

Patent:

Save / Share: