Application of positron beam Doppler broadening technique to radiation effects in ion-irradiated Fe-Cu alloys

被引：6

作者：

Iwai, T ^{[1
]}

Ito, Y ^{[1
]}

机构：

[1] Univ Tokyo, Res Ctr Nucl Sci & Technol, Tokai, Ibaraki 3191188, Japan

来源：

POSITRON ANNIHILATION, ICPA-13, PROCEEDINGS | 2004年 / 445-6卷

关键词：

ion irradiation; positron beam Doppler broadening technique; nuclear reactor pressure vessel steels; radiation embrittlement;

D O I：

10.4028/www.scientific.net/MSF.445-446.120

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to investigate the behavior of copper impurity in radiation embrittlement of LWR pressure vessel steels, positron beam Doppler broadening technique was applied to Fe-Cu irradiated by Fe ions. Positron beam Doppler broadening spectra clearly showed production of trapping sites for positrons in thermally-aged Fe-0.9Cu, and the sites are very likely to consist of copper atoms according to the contribution of annihilation with core electrons. In ion-irradiated specimens, copper atoms are likely to be enriched near nanoclusters.

引用

页码：120 / 122

页数：3

共 45 条

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