Published September 2011 | Version v1
Journal article Metadata-only

Neutron interrogation of shielded/unshielded uranium by a 4 MeV linac

Creators

  • 1. Institute of Isotopes, Hungarian Academy of Sciences, PO Box 77, H-1525 Budapest (Hungary)

Description

A non-destructive active assay method was developed for revealing illicit trafficking of uranium. Photoneutrons produced in beryllium or heavy water by bremsstrahlung from a linac induced fission in the samples. Delayed fission neutrons were detected by a neutron collar built up of 3He counters embedded in polyethylene moderator. High-enriched uranium samples shielded and unshielded by lead up to 14 mm thickness were detected, with a performance practically unaltered. 25 mg 235U can be revealed in a 1 min interrogation time.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.apradiso.2011.04.003

Additional details

Identifiers

DOI
10.1016/j.apradiso.2011.04.003;
PII
S0969-8043(11)00212-0;

Publishing Information

Journal Title
Applied Radiation and Isotopes
Journal Volume
69
Journal Issue
9
Journal Page Range
p. 1251-1254
ISSN
0969-8043
CODEN
ARISEF

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43064072
Subject category
S07: ISOTOPES AND RADIATION SOURCES;
Descriptors DEI
BERYLLIUM; BREMSSTRAHLUNG; DELAYED NEUTRONS; HE-3 COUNTERS; HEAVY WATER; HIGHLY ENRICHED URANIUM; LINEAR ACCELERATORS; MEV RANGE 01-10; PHOTONEUTRONS; POLYETHYLENES; URANIUM 235
Descriptors DEC
ACCELERATORS; ACTINIDE NUCLEI; ACTINIDES; ALKALINE EARTH METALS; ALPHA DECAY RADIOISOTOPES; BARYONS; DEUTERIUM COMPOUNDS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; ENRICHED URANIUM; EVEN-ODD NUCLEI; FERMIONS; FISSION NEUTRONS; HADRONS; HEAVY NUCLEI; HYDROGEN COMPOUNDS; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPE ENRICHED MATERIALS; ISOTOPES; MATERIALS; MEASURING INSTRUMENTS; METALS; MEV RANGE; MINUTES LIVING RADIOISOTOPES; NEUTRON DETECTORS; NEUTRONS; NUCLEI; NUCLEONS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; OXYGEN COMPOUNDS; PHOTONUCLEONS; POLYMERS; POLYOLEFINS; PROPORTIONAL COUNTERS; RADIATION DETECTORS; RADIATIONS; RADIOISOTOPES; SPONTANEOUS FISSION RADIOISOTOPES; URANIUM; URANIUM ISOTOPES; WATER; YEARS LIVING RADIOISOTOPES

Optional Information

Copyright
Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.