Fission product release from LWR fuel defected in steam in the temperature range 500 to 1600/sup 0/C [electronic resource].
- Oak Ridge, Tenn. : Oak Ridge National Laboratory, 1979.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 9 : digital, PDF file
- Additional Creators:
- Oak Ridge National Laboratory
United States. Department of Energy. Office of Scientific and Technical Information
- For practical purposes the release of cesium and iodine from LWR fuel rods in the temperature range 500 to 1600/sup 0/C can be considered to originate from three sources: (1) the gap inventory with release by both burst (vented gas) and diffusion; (2) grain boundary with release by tunnel formation; and (3) UO/sub 2/ matrix with release by solid state diffusion. The chemical behavior of released iodine and cesium (at least after contact with steam) is predominantly that of CsI and CsOH. Fission gas release is the sum of the plenum inventory, gas embedded in the fuel and cladding surface layers and that released by tunnel formation, and solid state diffusion from the UO/sub 2/ matrix. A small amount of large particle-sized fuel dust is ejected at time of rupture.
- Published through SciTech Connect.
IAEA specialists meeting on defected zirconium alloy clad ceramic fuel in water cooled reactors, Chalk River, Canada, 17 Sep 1979.
Lorenz, R.A.; Malinauskas, A.P.; Collins, J.L.; Osborne, M.F.
- Funding Information:
View MARC record | catkey: 14803052