Synthetic Diamond Monochromator at SPring-8.

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  • ＳＰｒｉｎｇ‐８のダイヤモンド分光器
  • ケンキュウ ノ サイゼンセン カラ SPring 8 ノ ダイヤモンド ブンコウキ

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This paper describes the possibility of utilizing a synthetic diamond as a new optical element in the thirdgeneration synchrotron radiation source SPring-8. The development of the synthetic diamond allows for the branching of the low emmitance undulator source, and opens a new multi-color. At SPring-8, RIKEN Beamline I (BL45XU) is the first branched undulator beamline, which consists of two experimental stations, protein crystallography (PX) and small-angle X-ray scattering (SAXS). The branched beams are generated by a transparent diamond crystal. The PX branch of RIKEN Beamline I has been designed based on the trichromatic concept to optimize the multi-wavelength anomalous diffraction (MAD) method data collection. This concept involves three kinds of intensity data sets with three different wavelengths being taken quasisimultaneously for the single protein crystal without changing any settings on the diamond trichromator.

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