Accelerator-based approach experiments for remote identification of fissionable and other materials

Accelerator-based approach experiments for remote identification of fissionable and other materials

Recently there has been a great deal of interest in studying possible methods for remote non-destructive material composition testing, for example, for cargo identification at transportation, neutron logging etc., by means of nuclear detection (D.R. Brown, T. Gozani, Nucl. Instr. and Meth. B 99 (199...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 139; no. 1; pp. 298 - 300
Main Authors: Chuvilo, I.V, Danilov, M.M, Katarzhnov, Yu.D, Kushin, V.V, Nedopekin, V.G, Plotnikov, S.V, Rogov, V.I
Format: Journal Article
Language:English
Published: Elsevier B.V 01-04-1998
Subjects:
Accelerator
Gamma ray spectra
Remote identification
Time-of-flight
Gamma ray spectra
Remote identification
Time-of-flight
Accelerator
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Summary:Recently there has been a great deal of interest in studying possible methods for remote non-destructive material composition testing, for example, for cargo identification at transportation, neutron logging etc., by means of nuclear detection (D.R. Brown, T. Gozani, Nucl. Instr. and Meth. B 99 (1995) 753) Of current concern are the applications of pulsed fast neutron analysis in determining the composition of fissile objects (I.I. Zaliubovskiy et al., Atomnaya Energia 74 (6) (1993) 4973. In this paper the observed experimental results are discussed indicating the possibility of practical realization of the method for remote material identification. The approach is based on measuring gamma ray spectra from an object to be examined after its irradiation with short neutron pulses produced by an accelerator. The obtained time and energy gamma spectra are used for material inspection. The information is obtained by using time-of-flight (TOF) analysis between the accelerator pulse and the arrival of gamma rays in NaI detectors located far enough from an object to be examined. The method seems to be the most effective for fissile materials identification.
ISSN:0168-583X
1872-9584
DOI:10.1016/S0168-583X(98)00059-7