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

Journal Article · Wed Nov 26 23:00:00 EST 2014 · Journal of Radioanalytical and Nuclear Chemistry

DOI:https://doi.org/10.1007/s10967-014-3786-6· OSTI ID:1200620

Andrews, M. T. ^[1]; Corcoran, E. C. ^[2]; Goorley, J. T. ^[3]; Kelly, D. G. ^[2]

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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)

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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC52-06NA25396
• OSTI ID: 1200620
• Report Number(s): LA-UR--14-26694
• Journal Information: Journal of Radioanalytical and Nuclear Chemistry, Journal Name: Journal of Radioanalytical and Nuclear Chemistry Journal Issue: 1 Vol. 747; ISSN 0236-5731
• Publisher: Springer
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
MCNP6
delayed gamma
delayed neutron counting
nuclear forensics
nuclear forensics
MCNP6