کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1590807 | 1515467 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surface gradient integrated profiler for X-ray and EUV optics
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Surface gradient integrated profiler for X-ray and EUV optics Surface gradient integrated profiler for X-ray and EUV optics](/preview/png/1590807.png)
چکیده انگلیسی
A new ultraprecise profiler has been developed to measure, for example, asymmetric and aspheric profiles. The principle of our measuring method is that the normal vector at each point on the surface is determined by making the incident light beam on the mirror surface and the reflected beam at that point of coincident. The gradient at each point is calculated from the normal vector, and the surface profile is then obtained by integrating the gradients. The measuring instrument was designed in accordance with the above principle. In the design, four ultraprecise goniometers were applied to adjust the light axis for normal vector measurement. The angle-positioning resolution and accuracy of each goniometer are, respectively, 0.018 and 0.2 μrad. Thus, in the measuring instrument, the most important factor is the accuracy of the normal vectors measured by the goniometers. Therefore, the rotating angle-positioning errors were measured and calibrated. An elliptical profile mirror for nanometer hard-X-ray focusing was measured, and compared with the measured profile using a stitching interferometer. The absolute measurement accuracy of approximately 5 nm (peak-to-valley) was achieved. Then the measurements of 1000-mm-long flat, spherical and parabolic mirrors were demonstrated. The surface profiles of the mirrors were obtained by integrating the interpolated gradient.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science and Technology of Advanced Materials - Volume 8, Issue 3, April 2007, Pages 177-180
Journal: Science and Technology of Advanced Materials - Volume 8, Issue 3, April 2007, Pages 177-180
نویسندگان
Yasuo Higashi, Yuichi Takaie, Katsuyoshi Endo, Tatsuya Kume, Kazuhiro Enami, Kazuto Yamauchi, Kazuya Yamamura, Yasuhisa Sano, Kenji Ueno, Yuzo Mori,