Methane formation in graphite and boron-doped graphite under simultaneous 0+ and H+ irradiation

被引：14

作者：

Chen, AYK ^{[1
]}

Davis, JW ^{[1
]}

Haasz, AA ^{[1
]}

机构：

[1] Univ Toronto, Inst Aerosp Studies, Fus Res Grp, N York, ON M3H 5T6, Canada

来源：

JOURNAL OF NUCLEAR MATERIALS | 2001年 / 290卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

boronized graphite; chemical erosion; ion bombardment; oxygen; boron;

D O I：

10.1016/S0022-3115(00)00620-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Boron-doped graphite specimens (similar to 15 at.% B) exposed to simultaneous O+/H+ irradiation were found to have higher methane yields than when exposed to H+ ions alone. This finding is opposite to the case of pure graphite where simultaneous O+/H+ irradiation leads to a decrease in methane yield when compared to the H+-only case. It appears that the mechanism leading to CH4 yield reduction for B-doped graphites is partially nullified by the presence of oxygen ions. Possible mechanisms are proposed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：61 / 65

页数：5

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