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Title: A system for the measurement of delayed neutrons and gammas from special nuclear materials

The delayed neutron counting (DNC) system at the Royal Military College of Canada has been upgraded to accommodate concurrent delayed neutron and gamma measurements. This delayed neutron and gamma counting (DNGC) system uses a SLOWPOKE-2 reactor to irradiate fissile materials before their transfer to a counting arrangement consisting of six ³He and one HPGe detector. The application of this system is demonstrated in an example where delayed neutron and gamma emissions are used in complement to examine ²³³U content and determine fissile mass with an average relative error and accuracy of -2.2 and 1.5 %, respectively.
Authors:
 [1] ;  [2] ;  [3] ;  [2]
  1. Royal Military College of Canada, Kingston, ON (Canada); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Royal Military College of Canada, Kingston, ON (Canada)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
OSTI Identifier:
1200620
Report Number(s):
LA-UR--14-26694
Journal ID: ISSN 0236-5731
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 747; Journal Issue: 1; Journal ID: ISSN 0236-5731
Publisher:
Springer
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS delayed neutron counting; delayed gamma; nuclear forensics, MCNP6; delayed neutron counting; delayed gamma; nuclear forensics; MCNP6