Title: Detection of fissile material using cold neutron interrogation combined with neutron coincidence counting
Authors: BAGI JANOSSZENTMIKLÓSI L.HLAVATHY Zoltan
Citation: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS vol. 291 p. 53-57
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2012
JRC N°: JRC70297
ISSN: 0168-583X
URI: http://www.sciencedirect.com/science/article/pii/S0168583X12005253
http://publications.jrc.ec.europa.eu/repository/handle/JRC70297
DOI: 10.1016/j.nimb.2012.08.020
Type: Articles in Journals
Abstract: A variety of neutron interrogation techniques exists for the identification and characterization of fissile materials. Typically the sample is irradiated continuously or in pulses, and the neutron or gamma response is used to for the characterization. Active neutron coincidence counting is one of these techniques, based on the detection of correlated prompt neutrons from induced fission in 235U, in order to quantify uranium. Typically AmLi neutron sources are used for the interrogation so far. In this study we used for the first time a guided cold neutron beam for interrogation, which is a far more intense source of uncorrelated neutrons. A pilot neutron coincidence setup was installed at a neutron beam of the Budapest Neutron Centre, and samples of small volumes and various uranium contents were measured. It was proven that the detection of fission events (Doubles) is feasible even for micrograms of 235U and the detector response is proportional to the fissile content of the sample.
JRC Institute:Institute for Transuranium Elements

Files in This Item:
There are no files associated with this item.


Items in repository are protected by copyright, with all rights reserved, unless otherwise indicated.