Title: Time-Correlated Pulse-Height Measurements of Low-Multiplying Nuclear Materials
Authors: MILLER EricDOLAN JenniferCLARKE Shaun D.POZZI SaraTOMANIN ALICEPEERANI PaoloMARLEAU P.MATTINGLY J.k.
Citation: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT vol. 729 no. C p. 108-116
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2013
JRC N°: JRC79989
ISSN: 0168-9002
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC79989
DOI: 10.1016/j.nima.2013.06.062
Type: Articles in periodicals and books
Abstract: Methods for the determination of the subcritical neutron multiplication of nuclear materials are of interest in the field of nuclear nonproliferation and safeguards. A time-correlated pulse-height (TCPH) analysis technique could be used to estimate the sub-critical multiplication of nuclear material. To evaluate the effectiveness of this technique and to benchmark the simulation capabilities of MCNPX-PoliMi/MPPost, a series of measurements were performed at the Joint Research Centre facility in Ispra, Italy. This campaign measured two low-multiplication samples: 1-kg mixed oxide (MOX) powder sample and plutonium-gallium (PuGa) disks. The measured results demonstrated that the sensitivity of the TCPH technique could not clearly distinguish samples with very-low levels of multiplication.
JRC Directorate:Nuclear Safety and Security

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