UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS

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2024-11-22 1:26
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Conference: Bucharest University Faculty of Physics 2024 Meeting


Section: Nuclear and Elementary Particles Physics


Title:
Study of Elemental Impurities present in Natural Uranium Samples for Nuclear Forensics and Safeguards Applications by Ion Beam Analysis at 3MV Tandetron TM


Authors:
Alexandru-Florin BEREVOIANU-MIRA (1,2), Ahmed OMAR (4), Mohamed M. Y. MOHSEN (4), Raluca MĂRGINEAN (2), Keunhwan KIM (2), Larisa-Maria GANEA (2), Ana-Maria PINTILIE (1,2), Decebal IANCU (2), Radu ANDREI (2), Dragoș MIREA (2), Andrei I. APOSTOL (2,3)


*
Affiliation:
1)Faculty of Physics, University of Bucharest

2)"Horia Hulubei” National Institute for R&D in Physics and Nuclear Engineering

3) RoPower S.A.

4) Nuclear Engineering Department, Military Technical College, Cairo, Egypt


E-mail
alexandru.berevoianu@nipne.ro


Keywords:
Nuclear forensics, Uranium, IBA


Abstract:
When it come to analysing nuclear material originating from the uranium fuel cycle one aspect which has to be taken into account is represented by the elemental impurities with various concentrations, including Rare Earth Elements (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, etc.). Elemental impurities may enter in the nuclear material at the different processing stages, thus making them a useful tool for identifying the production process, geolocation and the path that the analyzed samples have followed from production to their final destination. This information can be used within a criminal investigation which is conducted when such materials are found outside of the regulatory control. This paper addresses the application of Ion Beam Analysis methods for the study of major, minor and trace elements within various UOC samples available at the safegurards deposit of IFIN-HH. The 3MV Tandem Particle accelerator of IFIN-HH was used for this purpose, coupled with external beam experimental set-up. The preliminary results regarding the elemental composition of the samples which were obtained through both proton induced x-ray emission and proton induced gamma ray emission will be presented. Some of the analysed samples are originating from Romania, while others have unkown origin. Based on the outcomes of this reserch, the obtained results will be used to assess the unkown origin of the samples.


References:

1. I. Apostol, A. Pantelica, I. Ortega-Feliu, N. Marginean, O. Sima, M. Straticiuc, M. C. Jimenez-Ramos, V. Fugaru, Ion beam analysis of elemental signatures in uranium dioxide samples: importance for nuclear forensics, J Radioanal Nucl Chem (2016) 1- 8

2. Ion Beam Analysis, Proceedings of the Seventeenth International Conference on Ion Beam Analysis, Sevilla, Spain, 26 June - 1 July 2005, Edts. Dirk O. Boerma, Aurelio Climent-Font, Miguel Angel Respaldiza, Elsevier B.V., 2006; Nucl. Instr. and Meth. in Phys.