Sample spinning to mitigate polarization artifact and interstitial-vacancy imbalance in ion-beam irradiation
文献类型：期刊论文
| 作者 | Ren, CL; Yang, Y; Li, YG; Huai, P; Zhu, ZY; Li, J |
| 刊名 | NPJ COMPUTATIONAL MATERIALS
 |
| 出版日期 | 2020 |
| 卷号 | 6期号:1页码:- |
| 关键词 | CHARGED-PARTICLE CHALLENGES FE |
| ISSN号 | 2057-3960 |
| DOI | 10.1038/s41524-020-00438-9 |
| 文献子类 | 期刊论文 |
| 英文摘要 | 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. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/33119]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 3.MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA 4.MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA 5.Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China 6.Lawrence Berkeley Natl Lab, Natl Ctr Elect Microscopy, Mol Foundry, Berkeley, CA 94720 USA 7.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 8.Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 9.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, CL,Yang, Y,Li, YG,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, CL,Yang, Y,Li, YG,Huai, P,Zhu, ZY,&Li, J.(2020).Sample spinning to mitigate polarization artifact and interstitial-vacancy imbalance in ion-beam irradiation.NPJ COMPUTATIONAL MATERIALS,6(1),-. |
| MLA | Ren, CL,et al."Sample spinning to mitigate polarization artifact and interstitial-vacancy imbalance in ion-beam irradiation".NPJ COMPUTATIONAL MATERIALS 6.1(2020):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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