Source Term Analysis of the Irradiated Graphite in the Core of HTR-10

Table 1

Distribution ratios of nuclide after graphite combustion.

Nuclides	Distribution ratio (%)
	In residue	In NaOH aqueous solution	In off-gas
H-3	<1%	~95%	~5%
C-12	<1%	>99%	<1%
C-14	<1%	>99%	<1%
Co-60	~100%	BKG	BKG
Cs-137	~100%	BKG	BKG
Eu-152	~100%	BKG	BKG
Eu-154	~100%	BKG	BKG

BKG: background.