Swift heavy ion tracks in alkali tantalate crystals: a combined experimental and computational study
文献类型：期刊论文
| 作者 | Han, XQ; Liu, Y; Huang, Q; Crespillo, ML; Liu, P; Wang, XL |
| 刊名 | JOURNAL OF PHYSICS D-APPLIED PHYSICS
 |
| 出版日期 | 2020 |
| 卷号 | 53期号:10页码:- |
| ISSN号 | 0022-3727 |
| 关键词 | ELECTRONIC-ENERGY DEPOSITION OPTICAL WAVE-GUIDES DAMAGE PRODUCTION CROSS-SECTION IRRADIATION NIOBATE AMORPHIZATION DEFECTS NUCLEAR SIO2 |
| DOI | 10.1088/1361-6463/ab5ee6 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The formation of latent tracks with different damage morphologies in alkali tantalate crystals (KTaO3 and LiTaO3) under the action of the extreme electronic energy loss induced by 358 MeV Ni-58(19+) irradiation was studied by experimental characterizations of the lattice damage and numerical calculations using the inelastic thermal spike model. Prism coupling measurements were used to analyze of the refractive index profiles of irradiated regions. This approach is effective and very accurate for determination of the in-depth damage profile and its correlation with the energy loss curves. The calculated spatio-temporal evolution of the energy deposition densities and lattice temperatures theoretically demonstrate the experimentally observed latent tracks in Ni19+-irradiated crystals. Based on the observed damage morphologies of individual and overlapped spherical defects, and discontinuous and continuous tracks, the corresponding threshold values of the electronic energy loss for track damage in alkali tantalate crystals were assessed. For irradiating ions with an energy of 6.17 MeV amu(-1), a threshold of similar to 12.0 keV nm(-1) for the production of spherical defects in KTaO3 crystals is indicated, and the threshold for LiTaO3 crystals is less than 12.0 keV nm(-1). For irradiating ions with an energy of 2.15 MeV amu(-1), owing to the ion-velocity dependence effect, an electronic energy loss of similar to 13.8 keV nm(-1) leads to overlapped spherical defects and discontinuous tracks in KTaO3 and continuous tracks in LiTaO3. Compared with LiTaO3, a relatively higher damage tolerance and critical threshold for track formation in KTaO3 crystals are proven. The determined lattice temperature threshold for continuous track production is 3410 K for KTaO3 and slightly less than 3250 K for LiTaO3, demonstrating that, compared with the melting point, a much higher lattice temperature in the region surrounding the ion path needs to be achieved to produce stable track damage due to the non-negligible effect of melting damage caused by annealing during the cooling process. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/33182]  |
| 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 Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA 2.Shandong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266237, Shandong, Peoples R China 3.Shandong Univ, Key Lab Particle Phys & Particle Irradiat MOE, Qingdao 266237, Shandong, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 01800, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, XQ,Liu, Y,Huang, Q,et al. Swift heavy ion tracks in alkali tantalate crystals: a combined experimental and computational study[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2020,53(10):-. |
| APA | Han, XQ,Liu, Y,Huang, Q,Crespillo, ML,Liu, P,&Wang, XL.(2020).Swift heavy ion tracks in alkali tantalate crystals: a combined experimental and computational study.JOURNAL OF PHYSICS D-APPLIED PHYSICS,53(10),-. |
| MLA | Han, XQ,et al."Swift heavy ion tracks in alkali tantalate crystals: a combined experimental and computational study".JOURNAL OF PHYSICS D-APPLIED PHYSICS 53.10(2020):-. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。