Conveners
Oral Session #5 – Analytical Methods for Analysing Radiological and Nuclear Evidence
- Harinate Mungpayaban (Office of Atoms for Peace, Thailand)
At the beginning of the 1990's, incidents of illicit trafficking of nuclear materials generated a serious concern: An unexpected threat appeared and effective countermeasures based on nuclear forensic capabilities had to be quickly deployed. The first seizures of smuggled radioactive material were reported in 1991 in Switzerland and in Italy. In the subsequent years numerous similar incidents...
The Positron Annihilation Spectroscopy (PAS) is a well known and widely used analytical technique in the material science. PAS is typically used to measure structure defects in the materials, e.g. to determine material defects in various metal alloys or the molecular structure of medicines. This is also why it is used in nuclear industry to study the material structure of irradiated metal...
Nuclear forensics involves the analysis of nuclear material for possible provenance determination using various analytical tools that are available for such analysis. In this study, Scanning Electron Microscopy (SEM) combined with Electron Dispersion Spectrometer (EDS), were used to determine the signatures of uranium ore concentrates (UOC) samples for nuclear forensic applications. SEM and...
This paper describes the characterization of a large number of depleted uranium-based gamma radiography devices of different manufacturers and origins. It presents an application of different types of non-destructive analysis techniques that can provide quick information on the history and origin of the studied samples, thus assisting the criminal investigation and prosecution in cases when...
In the recent years sealed radioactive sources are getting more interest from nuclear forensics point of view, because these materials, unlike the more rigorously guarded nuclear materials, are relatively easier to access due to their use in the industry or in the medical care system. As well-known, nuclear forensic science uses destructive and non-destructive methods for the analysis of an...