Radionuclide Release Behavior of Light Water Reactor Spent Fuel Under Hydrothermal Conditions

1 January 1987

journal article
Published by Springer Nature in MRS Proceedings

Vol. 112
https://doi.org/10.1557/proc-112-505

Abstract

The Basalt Waste Isolation Project has performed initial characterization of the release behavior of radionuclides from ATM-101 spent fuel reacted under hydrothermal conditions. Results to date indicate that 1) ¹⁴C, ⁹⁰Sr, ¹²⁹I, and ¹³⁷Cs exhibit preferential release to solution relative to the actinides, 2) ^239+240Pu, ²⁴¹Am, and ²⁴⁴Cm ratios in solution are consistent with stoichiometric dissolution of the spent fuel matrix, whereas uranium concentrations are higher than those predicted for stoichiometric dissolution, 3) ¹³⁷Cs release varies as a function of the fluid to solid mass ratio, and 4) ¹⁴C, ¹²⁹I, and ¹³⁷Cs release is affected by fuel particle size and/or fuel washing.

Keywords

This publication has 1 reference indexed in Scilit:

The Relationship Between Gap Inventories of Stable Xenon,137Cs, and129I in Used CANDU Fuel
Nuclear Technology, 1987