Sample spinning to mitigate polarization artifact and interstitial-vacancy imbalance in ion-beam irradiation

doi:10.1038/s41524-020-00438-9

	Sample spinning to mitigate polarization artifact and interstitial-vacancy imbalance in ion-beam irradiation
	Ren, Cui-Lan 1,2,3; Yang, Yang 2,4; Li, Yong-Gang 5,6; Huai, Ping1,7,8 ; Zhu, Zhi-Yuan1,3,7 ; Li, Ju 2,9
	2020-12-11
发表期刊	NPJ COMPUTATIONAL MATERIALS (IF:9.4[JCR-2023],11.5[5-Year])
卷号	6 期号:1
发表状态	已发表
DOI	10.1038/s41524-020-00438-9
摘要	Accelerator-based ion-beam irradiation has been widely used to mimic the effects of neutron radiation damage in nuclear reactors. However, ion radiation is most often monodisperse in the incoming ions' momentum direction, leading to excessive polarization in defect distribution, while the scattering under neutron irradiation is often more isotropic and has less radiation-induced polarization. Mitigation of the excess-polarization as well as the damage non-uniformity artifact might be crucial for making the simulation of neutron radiation by ion-beam radiation more realistic. In this work, a general radiation polarization theory in treating radiation as external polar stimuli is established to understand the natural material responses in different contexts, and the possibility to correct the defect polarization artifact in ion-beam irradiation. Inspired by Magic Angle Spinning in Nuclear Magnetic Resonance, we present a precise sample spinning strategy to reduce the point-defect imbalance effect in ion-beam irradiation. It can be seen that with optimized surface inclination angle and the axis of sample rotation, the vacancy-interstitial population imbalance, as well as the damage profile non-uniformity in a designated region in the target are both reduced. It is estimated that sample spinning frequency on the order of kHz should be sufficient to scramble the ion momentum monodispersity for commonly taken ion fluxes and dose rates, which is experimentally feasible.
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收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA02040100] ; US DOE Office of Nuclear Energy's NEUP Program[DE-NE0008827] ; National Natural Science Foundation of China[11975018][11775254] ; National Magnetic Confinement Fusion Energy Research Project[2018YEF0308100]
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000599757100002
出版者	NATURE RESEARCH
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/124931
专题	物质科学与技术学院大科学中心大科学中心_公共科研平台_大科学装置建设部
通讯作者	Huai, Ping; Li, Ju
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 2.MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA 3.Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China 4.Lawrence Berkeley Natl Lab, Natl Ctr Elect Microscopy, Mol Foundry, Berkeley, CA 94720 USA 5.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 6.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230026, Peoples R China 7.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 8.Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 9.MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Ren, Cui-Lan,Yang, Yang,Li, Yong-Gang,et al. Sample spinning to mitigate polarization artifact and interstitial-vacancy imbalance in ion-beam irradiation[J]. NPJ COMPUTATIONAL MATERIALS,2020,6(1).
APA	Ren, Cui-Lan,Yang, Yang,Li, Yong-Gang,Huai, Ping,Zhu, Zhi-Yuan,&Li, Ju.(2020).Sample spinning to mitigate polarization artifact and interstitial-vacancy imbalance in ion-beam irradiation.NPJ COMPUTATIONAL MATERIALS,6(1).
MLA	Ren, Cui-Lan,et al."Sample spinning to mitigate polarization artifact and interstitial-vacancy imbalance in ion-beam irradiation".NPJ COMPUTATIONAL MATERIALS 6.1(2020).