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Spatial Resolutions of On-Axis and Off-Axis Transmission Kikuchi Diffraction Methods
Shen, Yitian; Xu, Jingchao; Zhang, Yongsheng; Wang, Yongzhe; Zhang, Jimei; Yu, Baojun; Zeng, Yi; Miao, Hong
2019-11-30
Source PublicationAPPLIED SCIENCES-BASEL
Volume9Issue:21
SubtypeArticle
AbstractSpatial resolution is one of the key factors in orientation microscopy, as it determines the accuracy of grain size investigation and phase identification. We determined the spatial resolutions of on-axis and off-axis transmission Kikuchi diffraction (TKD) methods by calculating correlation coefficients using only the effective parts of on-axis and off-axis transmission Kikuchi patterns. During the calculation, we used average filtering to evaluate the spatial resolution more accurately. The spatial resolutions of both on-axis and off-axis TKD methods were determined in the same scanning electron microscope at different accelerating voltages and specimen thicknesses. The spatial resolution of the on-axis TKD was higher than that of the off-axis TKD at the same parameters. Furthermore, with an increase in accelerating voltage or a decrease in specimen thickness, the spatial resolutions of the two configurations could be significantly improved, from tens of nanometers to below 10 nm. At a voltage of 30 kV and sample thickness of 74 nm, both on-axis and off-axis TKD methods exhibited the highest resolutions of 6.2 and 9.7 nm, respectively.
Keywordtransmission Kikuchi diffraction (TKD) transmission electron back-scatter diffraction (t-EBSD) on-axis detector spatial resolution
DOI10.3390/app9214478
WOS KeywordELECTRON BACKSCATTERED DIFFRACTION ; SPECIMEN-THICKNESS ; NANOCRYSTALLINE MATERIALS ; EBSD ; PATTERNS
Language英语
WOS Research AreaChemistry ; Materials Science ; Physics
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27508
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Shen, Yitian,Xu, Jingchao,Zhang, Yongsheng,et al. Spatial Resolutions of On-Axis and Off-Axis Transmission Kikuchi Diffraction Methods[J]. APPLIED SCIENCES-BASEL,2019,9(21).
APA Shen, Yitian.,Xu, Jingchao.,Zhang, Yongsheng.,Wang, Yongzhe.,Zhang, Jimei.,...&Miao, Hong.(2019).Spatial Resolutions of On-Axis and Off-Axis Transmission Kikuchi Diffraction Methods.APPLIED SCIENCES-BASEL,9(21).
MLA Shen, Yitian,et al."Spatial Resolutions of On-Axis and Off-Axis Transmission Kikuchi Diffraction Methods".APPLIED SCIENCES-BASEL 9.21(2019).
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