Non-destructive analysis of samples with a complex geometry by NRTA

Fei Ma; Stefan Kopecky; Gery Alaerts; Hideo Harada; Jan Heyse; Fumito Kitatani; Gilles. Noguere; Carlos Paradela; Lino Šalamon; Peter Schillebeeckx; Harufumi Tsuchiya; Ruud Wynants

doi:10.1039/C9JA00342H

Non-destructive analysis of samples with a complex geometry by NRTA

Fei Ma,

^a Stefan Kopecky,^b Gery Alaerts,^b Hideo Harada,

^a Jan Heyse,^b Fumito Kitatani,^a Gilles. Noguere,^c Carlos Paradela,^b Lino Šalamon,^bcd Peter Schillebeeckx,*^b Harufumi Tsuchiya

*^a and Ruud Wynants^b

Author affiliations

* Corresponding authors

^a Nuclear Science and Engineering Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
E-mail: tsuchiya.harufumi@jaea.go.jp

^b European Commission, Joint Research Centre, Retieseweg 111, B-2440 Geel, Belgium
E-mail: Peter.SCHILLEBEECKX@ec.europa.eu

^c DER, DEN, CEA, Cadarache, 13108 Saint-Paul-lez-Durance, France

^d Reactor Physics Division, Jozef Stefan Institute, 1000 Ljubljana, Slovenia

Abstract

The use of neutron resonance transmission analysis to characterise samples with a complex geometry is discussed. Analytical expressions for such samples have been derived and implemented in the resonance shape analysis code REFIT. They were validated by experiments at the time-of-flight facility GELINA using a set of metallic natural copper samples and pellets made of silver mixed with uranium-oxide powder. The expressions were used to derive sample characteristics by a least squares adjustment to experimental transmission data. In addition, the resonance parameters of ⁶³Cu and ⁶⁵Cu for energies below 6.5 keV, which are reported in the literature and recommended in evaluated data libraries, were verified.

Journal of Analytical Atomic Spectrometry

Non-destructive analysis of samples with a complex geometry by NRTA

Abstract

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