Fission gas release from ThO/sub 2/ and ThO/sub 2/--UO/sub 2/ fuels (LWBR development program)

Abstract

This document is an interim memorandum prepare•d primarily for internal reference and does not represent a final expression of the opinion of Westinghouse. When this memorandum is distributed externally, it i~; with the express understanding that Westinghouse makes no representation as t•o completeness, accuracy, or usability of information contained there.i.n.

Thermodynamic and transport properties of thoria–urania fuel of Advanced Heavy Water Reactor

“…Shiba et al [37,40] noted that the Xe release is dependent on urania concentration in thoria (0 6 X UO2 6 20 mol%) and it attains minimum at 5-6 mol% urania content. Reported capsule irradiation of (Th,U)O 2 pellet samples at high burnup [41] however indicated no bearing of the U/Th ratio on the fission gas release.…”