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The Irradiation Effect of a Simultaneous Laser and Electron Dual-beam on Void Formation

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Title: The Irradiation Effect of a Simultaneous Laser and Electron Dual-beam on Void Formation
Authors: Yang, Zhanbing Browse this author
Watanabe, Seiichi Browse this author →KAKEN DB
Kato, Takahiko Browse this author
Issue Date: 4-Feb-2013
Publisher: Nature Publishing Group
Journal Title: Scientific Reports
Volume: 3
Start Page: 1201
Publisher DOI: 10.1038/srep01201
Abstract: Randomly distributed lattice point defects such as supersaturated vacancies (SVs) and Frenkel-pairs (FPs, an interstitial and a vacancy) can be simultaneously introduced into the crystal by energetic beam irradiation in outer space and/or nuclear reactors, but their behavior has not been fully understood. Using a high-voltage electron microscope equipped with a laser (laser-HVEM), we show the striking effects of simultaneous laser-electron (photon-electron) dual-beam irradiation on void formation. Our results reveal that during laser-electron sequential irradiation, pre-laser irradiation enhanced void nucleation and subsequent electron irradiation enhanced void growth. However, the laser-electron dual-beam irradiation was analyzed to depress void swelling remarkably because the recombination of SVs and interstitials was enhanced. The results provide insight into the mechanism underlying the dual-beam radiation-induced depression of void swelling in solids.
Type: article
Appears in Collections:エネルギー・マテリアル融合領域研究センター (Center for Advanced Research of Energy and Material) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 渡辺 精一

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