27 September 2013 Damage characteristics of platinum/carbon multilayers under x-ray free-electron laser irradiation
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We evaluated the irradiation damage induced to platinum/carbon multilayers induced by hard X-ray free-electron lasers (XFELs). In this study, in order to test the use of the platinum/carbon multilayers for future XFEL focusing applications, we evaluated the structures in almost exactly the condition in which they would actually be used. The X-ray reflectivity of the multilayers was measured by using XFELs, and a cross-section of the multilayer that was irradiated by an XFEL was observed by transmission electron microscopy. We used a non-monochromatic beam at a photon energy of 10 keV. We confirmed that the intensity of the conditions under which the multilayers are to be used is sufficiently lower than the breakdown threshold of platinum/carbon multilayers.
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Jangwoo Kim, Jangwoo Kim, Takahisa Koyama, Takahisa Koyama, Hirokatsu Yumoto, Hirokatsu Yumoto, Ayaka Nagahira, Ayaka Nagahira, Satoshi Matsuyama, Satoshi Matsuyama, Yasuhisa Sano, Yasuhisa Sano, Makina Yabashi, Makina Yabashi, Haruhiko Ohashi, Haruhiko Ohashi, Tetsuya Ishikawa, Tetsuya Ishikawa, Kazuto Yamauchi, Kazuto Yamauchi, "Damage characteristics of platinum/carbon multilayers under x-ray free-electron laser irradiation", Proc. SPIE 8848, Advances in X-Ray/EUV Optics and Components VIII, 88480S (27 September 2013); doi: 10.1117/12.2022735; https://doi.org/10.1117/12.2022735

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