The analysis and attribution of the time-dependent neutron background resultant from sample irradiation in a SLOWPOKE-2 reactor

Autor: M. T. Sellers, E. C. Corcoran, David G. Kelly
Rok vydání: 2012
Předmět:
Zdroj: Journal of Radioanalytical and Nuclear Chemistry. 295:1221-1228
ISSN: 1588-2780
0236-5731
DOI: 10.1007/s10967-012-1964-y
Popis: The Royal Military College of Canada (RMCC) has commissioned a Delayed Neutron Counting (DNC) system for the analysis of special nuclear materials. A significant, time-dependent neutron background with an initial maximum count rate, more than 50 times that of the time-independent background, was characterised during the validation of this system. This time-dependent background was found to be dependent on the presence of the polyethylene (PE) vials used to transport the fissile samples, yet was not an activation product of vial impurities. The magnitude of the time-dependent background was found to be irradiation site specific and independent of the mass of PE. The capability of RMCC’s DNC system to analyze the neutron count rates in time intervals
Databáze: OpenAIRE