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- Title
X-ray collimation by the parabolic cylinder mirror in SPring-8/BL29XUL.
- Authors
Takei, Dai; Kohmura, Yoshiki; Senba, Yasunori; Ohashi, Haruhiko; Tamasaku, Kenji; Ishikawa, Tetsuya
- Abstract
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 µrad, 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.
- Subjects
COLLIMATION (Cinematography); PHOTON beams; COMPUTER simulation
- Publication
Journal of Synchrotron Radiation, 2016, Vol 23, Issue 1, p158
- ISSN
0909-0495
- Publication type
Article
- DOI
10.1107/S1600577515019797