Gravity compensation for bent mirror of synchrotron radiation

Huang Zhichao; Cheng Jian'gao; Li Fei; Zhang Lei; Wang Keyi

doi:10.11884/HPLPB201830.180066

Volume 30 Issue 8

Aug. 2018

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Huang Zhichao, Cheng Jian'gao, Li Fei, et al. Gravity compensation for bent mirror of synchrotron radiation[J]. High Power Laser and Particle Beams, 2018, 30: 085102. doi: 10.11884/HPLPB201830.180066

Citation:

Huang Zhichao, Cheng Jian'gao, Li Fei, et al. Gravity compensation for bent mirror of synchrotron radiation[J]. High Power Laser and Particle Beams, 2018, 30: 085102. doi: 10.11884/HPLPB201830.180066

Huang Zhichao, Cheng Jian'gao, Li Fei, et al. Gravity compensation for bent mirror of synchrotron radiation[J]. High Power Laser and Particle Beams, 2018, 30: 085102. doi: 10.11884/HPLPB201830.180066

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Gravity compensation for bent mirror of synchrotron radiation

doi: 10.11884/HPLPB201830.180066

Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, Chin

Received Date: 2018-03-13
Rev Recd Date: 2018-05-03
Publish Date: 2018-08-15

Abstract

Abstract

Slope error and evaluation criteria of bent mirror of synchrotron radiation induced from gravity are introduced.According to the bending theory of beam, a method of gravity compensation by couple combined with multi-point forces is proposed.Taking the bent mirror of the XAFS beam-line (BL14 W) at Shanghai Synchrotron Radiation Facility (SSRF) as an example, the minimum root mean square (RMS) slope error of the bent mirror under the action of two-point, three-point and fourpoint forces combined with couples are calculated, and the result is 0.092, 0.041 and 0.022μrad, respectively.The comparison between the compensation results shows that when a couple is applied to both ends of the mirror, the corresponding compensation forces decreases, and the slope errors of the couple combined with two-point, three-point and four-point forces are 52%, 61%and68% of those without couples.Obviously, the compensation method of couples combined with multi-point forces is better than the multi-point forces compensation method.
- bent mirror,
- gravity compensation,
- couple combined with multi-point forces,
- slope error,
- synchrotron radiation

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References(13)

References

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