期刊
ULTRAMICROSCOPY
卷 184, 期 -, 页码 242-251出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultramic.2017.09.008
关键词
EBSD; Direct electron detector; Medipix; 3D EBSD; SEM image drift; Focused ion beam
类别
资金
- National Measurement System of the UK Government Department for Business, Energy and Industrial Strategy
The use of a direct electron detector for the simple acquisition of 2D electron backscatter diffraction (EBSD) maps and 3D EBSD datasets with a static sample geometry has been demonstrated in a focused ion beam scanning electron microscope. The small size and flexible connection of the Medipix direct electron detector enabled the mounting of sample and detector on the same stage at the short working distance required for the FIB. Comparison of 3D EBSD datasets acquired by this means and with conventional phosphor based EBSD detectors requiring sample movement showed that the former method with a static sample gave improved slice registration. However, for this sample detector configuration, significant heating by the detector caused sample drift. This drift and ion beam reheating both necessitated the use of fiducial marks to maintain stability during data acquisition. (C) 2017 Elsevier B.V. All rights reserved.
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