Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1678110 | Ultramicroscopy | 2008 | 7 Pages |
Abstract
By using a low-order zone-axis ronchigram of a crystalline sample, a simple method for measuring twofold astigmatism of a probe-forming lens is proposed. This method allows precise measurement of the value of astigmatism from only one experimental ronchigram.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Koji Kuramochi, Takashi Yamazaki, Yasutoshi Kotaka, Yoshio Kikuchi, Iwao Hashimoto, Kazuto Watanabe,