Analysis of Fission Products’ Release in Pebble-Bed High-Temperature Gas-Cooled Reactor Fuel Elements Using a Modified FRESCO II Numerical Model

Table 2

Diffusion coefficients.

	Kernel	Buffer layer	IPyC	SiC	OPyC
D0 (cm^2/s)	5.6E − 04	1.0E − 08	6.3E − 04	1.0E − 14	6.3E − 04
E (J/mol)	2.1E + 05	0	2.2E + 05	1.0E + 05	2.2E + 05