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- Title
Cesium release during high-temperature pre-treatment of fuel fragments with a burn-up of 61 GWd/tU.
- Authors
Lee, Jae-Won; Lee, Do-Yoon; Lee, Young-Soon; Yoon, Joo-Young; Jeon, Sang-Chae; Lee, Ju-Ho; Hong, Seok-Min; Cho, Yung-Zun
- Abstract
The electrolytic reduction process in pyroprocessing of used fuel requires that fuel fragments be pre-treated to remove cesium and iodine. The effect of high temperatures and fuel fragment size on release of cesium was investigated over 10 h at a temperature of 1300-1400 °C for fuel fragments with an O/U ratio of 2.2. Re-fragmentation of the original fragments was observed as changes in cesium release count rates as fuel was heated from 484 to 1329 °C. The release of cesium is highly dependent on the size of fuel fragments and most of the cesium is released as the temperature is held at the maximum target value.
- Subjects
CESIUM; FRAGMENTATION reactions; IODINE; FUEL; TEMPERATURE
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2018, Vol 317, Issue 1, p15
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-017-5371-2