期刊
JOURNAL OF NUCLEAR MATERIALS
卷 457, 期 -, 页码 118-123出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnucmat.2014.10.097
关键词
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资金
- National Magnetic Confinement Fusion Science Program [2013GB1100005, 2013GB110004, 2013GB105002]
- NIFS collaboration program [NIFS07KOBA020, NIFS10KUHR008]
- Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences [DSJJ-13-YY01]
- Center of Instrumental Analysis at Shizuoka University
Effect of impurities on existing states of boron, carbon and oxygen in boron films were investigated by XPS technique. Carbon mainly exists as B-C-B bond and B-C bond in 70% B boron films, and BAC bond and C-C bond in 50% B boron films. The existing state of oxygen depends on impurities composition in 70% B and 50% B boron films. D+ implantation and thermal desorption result in the reconstruction of boron films, which mainly includes the elimination of B2O3, increasing of B-O bond and decreasing of B-B bond. Implanted D+ into boron films can be trapped by carbon and oxygen, and remits as D2O and CDx in TDS process. Comparing to carbon, oxygen can be trapped easily by B-B bond and difficult to remit from boron films. (C) 2014 Elsevier B.V. All rights reserved.
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