Published December 1983 | Version v1
Report Open

Mechanistic prediction of iodine and cesium release from LWR fuel

Creators

Description

A theoretical model (FASTGRASS) has been used for predicting the behavior of fission gas and volatile fission products (VFPs) in UO2-base fuels during steady-state and transient conditions. This model represents an attempt to develop an efficient predictive capability for the full range of possible reactor operating conditions. Fission products released from the fuel are assumed to reach the fuel surface by successively diffusing (via atomic and gas-bubble mobility) from the grains to grain faces and then to the grain edges, where the fission products are released through a network of interconnected tunnels of fission-gas-induced and fabricated porosity

Availability note (English)

MF available from INIS under the Report Number; Available from NTIS, PC A02/MF A01 as DE84004008.

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Additional details

Publishing Information

Imprint Pagination
9 p.
Report number
CONF-840701--1-Summ

Conference

Title
Topical meeting on fission product behavior and source term research.
Dates
15-19 Jul 1984.
Place
Snowbird, UT (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
16003079
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
FISSION PRODUCT RELEASE; IODINE; NUCLEAR FUELS; OXIDATION; REACTOR ACCIDENTS; REACTOR OPERATION; STEAM; URANIUM DIOXIDE; WATER COOLED REACTORS
Descriptors DEC
ACCIDENTS; ACTINIDE COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; ELEMENTS; ENERGY SOURCES; FUELS; HALOGENS; MATERIALS; NONMETALS; OPERATION; OXIDES; OXYGEN COMPOUNDS; REACTOR MATERIALS; REACTORS; URANIUM COMPOUNDS; URANIUM OXIDES