Fabrication of an Axisymmetric Wolter Type I Mirror with a Gold Deposited Reflecting Surface
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概要
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A small axisymmetric Wolter type I mirror was fabricated by a new film deposition method for an X-ray reflecting surface. In the film deposition, a gold (Au) electrode was inserted into a glass replica of the mirror. An Ar discharge was generated inside the replica at a discharge pressure of 44 Pa when a 40 kHz radio-frequency high voltage ($-1.5\text{--}-3$ kV) was supplied to the electrode. As a result of Au sputtering in the discharge, a 30 nm-thick Au film was deposited on the replica inner surface. The Au deposited surface had a surface roughness of 5–10 nm (peak to valley). A 300 $\mu$m-diameter X-ray beam with a reflectivity of 20% was obtained using a 6 mm-diameter MgK$\alpha$ X-ray (1253.6 eV) source. The present deposition method is suitable for producing metal deposited reflecting surfaces of axisymmetric X-ray mirrors.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 1989-11-20
著者
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Aoki Sadao
Institute Of Applied Physics University Of Tsukuba
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HONDA Kazunari
Production Engineering Research Laboratory, Hitachi, Ltd.
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Nishimatsu Shigeru
Central Research Laboratory Hitachi Lid.
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Suzuki Keizo
Central Research Laboratory Hitachi Limited
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NINOMIYA Ken
Central Research Laboratory
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Ninomiya Ken
Central Research Laboratory, Hitachi, Ltd., Kokubunji, Tokyo 185
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Honda Kazunari
Production Engineering Research Laboratory, Hitachi, Ltd., Totsuka, Yokohama 244
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