학술논문
Interaction of fission gases with liquid sodium and their detection by gamma spectrometry for the identification of failed fuel subassembly with gas leaker fuel pin in PFBR
Document Type
Original Paper
Author
Source
Journal of Radioanalytical and Nuclear Chemistry: An International Journal Dealing with All Aspects and Applications of Nuclear Chemistry. 333(3):1565-1575
Subject
Language
English
ISSN
0236-5731
1588-2780
1588-2780
Abstract
Identification of a failed fuel subassembly due to the dry rupture of its fuel pin in prototype fast breeder reactor is one of the safety protocols to be standardized for its safe operation for which interaction of fission gases with liquid sodium was studied. This paper reports the studies on the feasibility of detection of fission gases in presence of sodium as well as separation of fission gases out of liquid sodium through Ar purge in a prototypical sodium module with 300 mL of Na. The resultant gases were adsorbed on activated charcoal and determined the activity of fission gases using high resolution gamma spectrometry. Quantitative recovery of fission gases from sodium matrix in the range of sub-picogram levels was established.