氘
辐照
氦
钨
质谱法
离子
化学
解吸
放射化学
聚变能
热脱附光谱法
氢
热脱附
四极杆质量分析仪
俘获
分析化学(期刊)
原子物理学
核物理学
等离子体
吸附
物理
物理化学
生态学
有机化学
生物
色谱法
作者
Hirotomo Iwakiri,Kazunori Morishita,N. Yoshida
标识
DOI:10.1016/s0022-3115(02)01178-9
摘要
The effects of pre-irradiation with helium ions of fusion relevant energy on trapping of injected deuterium in W was studied by thermal desorption spectrometry technique using high-resolution quadrupole mass spectrometer. Pre-irradiation with He ions caused remarkable effects on the trapping of injected deuterium. Most of the injected deuterium is desorbed between 400 and 600 K for the case without helium pre-irradiation, while additional desorption occurs between 600 and 800 K for the helium pre-irradiation case. Total amount of the trapped deuterium for irradiations of 2.0×1021 He/m2 and 1.0×1022 D2/m2 is 6.2×1020 D2/m2, which is more than three times higher than that in the case of no helium pre-irradiation. The present result indicates that irradiation effects of He bombardment must be taken into account to understand and evaluate the behavior of hydrogen isotopes in fusion environment.
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