Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

KRYPTON BACK DIFFUSION THROUGH GRAPHITE CLAD FUEL ELEMENTS

Technical Report ·
OSTI ID:4775429

An investigation of gaseous back diffusion through various graphite cladding materials at reactor operating conditions was studied using Kr/sup 85/ as a representative fission product. Results indicate that the effective back diffusion coefficient of graphite can be reduced by providing an inflow of He through the specimen wall. It is concluded that a material exhibiting a relatively flat curve of He permeability vs, mean He pressure is insensitive to the pressure differential across the specimen in back diffusion. (J.R.D.)

Research Organization:
General Atomic Div., General Dynamics Corp., San Diego, Calif.
NSA Number:
NSA-17-001004
OSTI ID:
4775429
Report Number(s):
GAMD-3276
Country of Publication:
United States
Language:
English

Similar Records

Use of krypton-85 for the detection of pinhole failures in GCFR cladding
Technical Report · Sat May 01 00:00:00 EDT 1976 · OSTI ID:7355468

Measurement of Helium and Xenon Knudsen permeability in graphite IG-11
Journal Article · Tue Sep 27 00:00:00 EDT 2022 · Journal of Nuclear Materials · OSTI ID:2424522

DIFFUSION OF RADIOACTIVE GASES THROUGH POWER REACTOR GRAPHITE
Technical Report · Tue Mar 31 23:00:00 EST 1959 · OSTI ID:4125499