Improvement of 94Nb analytical sensitivity in radioactive dry active waste with sequential chemical separation

To achieve permanent disposal of radioactive waste drums, the radionuclides analysis process is essential. A variety of waste types are generated through the operation of nuclear facilities, with dry active waste being the most abundant. To perform radionuclides analysis, sample pre-treatment techno...

Full description

Saved in:
Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2023-10, Vol.332 (10), p.4291-4300
Main Authors: Yoo, Jung Bo, Jung, Kyunghun, Choi, Kwang-Soon, Choi, Jungweon, Kim, Gi Yong, Oh, Simon, An, Hyojin, Kim, Jihyun, Jung, Minyoung
Format: Article
Language:English
Subjects:
Chemical separation
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Nuclides
Physical Chemistry
Radioactive waste disposal
Radioactivity
Radioisotopes
Reliability analysis
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:To achieve permanent disposal of radioactive waste drums, the radionuclides analysis process is essential. A variety of waste types are generated through the operation of nuclear facilities, with dry active waste being the most abundant. To perform radionuclides analysis, sample pre-treatment technology is required to transform solid samples into solutions. In this study, we developed a dry ashing-microwave digestion method and secured the reliability of the analysis results through a validity evaluation. Additionally, we conducted a comparative analysis of the radioactivity of 94 Nb nuclides with and without the chemical separation process, which reduced the minimum detectable activity level by more than 65-fold for a certain sample.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-023-09116-8