Comparing results of X-ray diffraction, µ-Raman spectroscopy and neutron diffraction when identifying chemical phases in seized nuclear material, during a comparative nuclear forensics exercise
Artikel i vetenskaplig tidskrift, 2018

This work presents the results for identification of chemical phases obtained by several laboratories as a part of an international nuclear forensic round-robin exercise. In this work powder X-ray diffraction (p-XRD) is regarded as the reference technique. Neutron diffraction produced a superior high-angle diffraction pattern relative to p-XRD. Requiring only small amounts of sample, µ-Raman spectroscopy was used for the first time in this context as a potentially complementary technique to p-XRD. The chemical phases were identified as pure UO 2 in two materials, and as a mixture of UO 2 , U 3 O 8 and an intermediate species U 3 O 7 in the third material.

XRD

Phase identification

Uranium oxide

Neutron diffraction

Nuclear forensics

µ-Raman Spectroscopy

Författare

Stina Holmgren Rondahl

Totalförsvarets forskningsinstitut (FOI)

Fabien Pointurier

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

Linnea Ahlinder

Totalförsvarets forskningsinstitut (FOI)

Henrik Ramebäck

Totalförsvarets forskningsinstitut (FOI)

Chalmers, Kemi och kemiteknik, Energi och material, Kärnkemi

Olivier Marie

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

Brice Ravat

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

François Delaunay

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

Emma Young

Australian Nuclear Science and Technology Organisation

Ned Blagojevic

Australian Nuclear Science and Technology Organisation

James R. Hester

Australian Nuclear Science and Technology Organisation

Gordon Thorogood

Australian Nuclear Science and Technology Organisation

Aubrey N. Nelwamondo

South African Nuclear Energy Corporation (NECSA)

Tshepo P. Ntsoane

South African Nuclear Energy Corporation (NECSA)

Sarah K. Roberts

Lawrence Livermore National Laboratory

Kiel S. Holliday

Lawrence Livermore National Laboratory

Journal of Radioanalytical and Nuclear Chemistry

0236-5731 (ISSN) 1588-2780 (eISSN)

Vol. 315 2 395-408

Ämneskategorier

Oorganisk kemi

Keramteknik

Materialkemi

DOI

10.1007/s10967-017-5666-3

Mer information

Senast uppdaterat

2018-04-11