X-ray collimation by the parabolic cylinder mirror in SPring-8/BL29XUL

被引：4

作者：

Takei, Dai ^{[1
]}

Kohmura, Yoshiki ^{[1
]}

Senba, Yasunori ^{[2
]}

Ohashi, Haruhiko ^{[2
]}

Tamasaku, Kenji ^{[1
]}

Ishikawa, Tetsuya ^{[1
]}

机构：

[1] RIKEN SPring 8 Ctr, Sayo, Hyogo 6795148, Japan

[2] JASRI, Sayo, Hyogo 6795148, Japan

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2016年 / 23卷

关键词：

X-ray optics; beam divergence; beamline development; SYNCHROTRON-RADIATION; OPTICS; REFLECTION; SCATTERING; BEAMLINE;

D O I：

10.1107/S1600577515019797

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A combination of plane and threefold-shape X-ray mirrors was installed in SPring-8 BL29XUL. The second mirror has parabolic cylinder surfaces that collimate X-rays in the vertical direction. A performance test was conducted, yielding highly collimated 8 keV photon beams with an effective angular divergence of 0.4 mrad, below only 5% of that of the original beams. The double-mirror system preserved 70% of the total incident flux and nearly tripled the flux density at 988 m from the light source. The values of the observations were almost similar to those of our ray-tracing simulation. Based on the results a discussion of future prospects of the mirror system is included.

引用

页码：158 / 162

页数：5

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