He-content and induced swelling of neutron irradiated beryllium
- S.C.K./C.E.N., Mol (Belgium); and others
The effects of neutron irradiation on beryllium in terms of helium generation and induced swelling have been studied. Beryllium samples have been irradiated in the Belgian materials test reactor BR2 at low temperature (40-50{degrees}C) up to 20,000 appm He (i.e. fast neutron dose (E>1 MeV) of 4 x 10{sup 22} n/cm{sup 2}). Post-irradiation annealing has been performed to study the effect of temperature on the helium behavior and the induced swelling. Microscopic examinations of the gas content revealed a linear correlation of {sup 4}He content with fast neutron fluence. {sup 4}He contents were found to be about 10% higher than their expected formation as calculated from the various formation schemes.
- OSTI ID:
- 197015
- Report Number(s):
- CONF-940664--
- Country of Publication:
- United States
- Language:
- English
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