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9 September 2019 Remodeling of the optics for a micro-focusing protein crystallography beamline at SPring-8
Shunji Goto, Tomoyuki Takeuchi, Yasunori Senba, Hirokatsu Yumoto, Hiroshi Yamazaki, Haruhiko Ohashi, Seiki Baba, Nobuhiro Mizuno, Yuki Nakamura, Kazuya Hasegawa, Takashi Kumasaka, Kunio Hirata, Keitaro Yamashita, Naoki Sakai, Masaki Yamamoto
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Proceedings Volume 11108, Advances in X-Ray/EUV Optics and Components XIV; 111080I (2019) https://doi.org/10.1117/12.2530667
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States
Abstract
Micro-focusing protein crystallography beamline BL45XU was remodeled using focusing mirrors and a slit as a secondary source. In the horizontal direction, two stage focusing was adopted and beam size was controlled by the slit and defocusing of 2nd mirror by changing the glancing angle. In the vertical direction, beam size was enlarged by defocusing by changing the glancing angle. Beam profile and photon flux through slit and mirror were estimated using a wave calculation, and compared with the measurements. We verified that beam size can be controlled using a slit and mirror defocusing from 5×5 to 50×50 μm2, and measured photon flux agreed with estimation.
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Shunji Goto, Tomoyuki Takeuchi, Yasunori Senba, Hirokatsu Yumoto, Hiroshi Yamazaki, Haruhiko Ohashi, Seiki Baba, Nobuhiro Mizuno, Yuki Nakamura, Kazuya Hasegawa, Takashi Kumasaka, Kunio Hirata, Keitaro Yamashita, Naoki Sakai, and Masaki Yamamoto "Remodeling of the optics for a micro-focusing protein crystallography beamline at SPring-8", Proc. SPIE 11108, Advances in X-Ray/EUV Optics and Components XIV, 111080I (9 September 2019); https://doi.org/10.1117/12.2530667
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KEYWORDS
Crystallography
Proteins
Mirrors
Optical design
Crystals
Laser crystals
Monochromators
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