Structure Improvement and Stability Research of Double Crystal Monochromator

GUO Siming; HOU Dongjie; WANG Eryan; SONG Ruiqiang; ZHOU Pengyue

doi:10.12338/j.issn.2096-9015.2020.9024

Volume 65 Issue 5

Jun. 2021

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GUO Siming, HOU Dongjie, WANG Eryan, SONG Ruiqiang, ZHOU Pengyue. Structure Improvement and Stability Research of Double Crystal Monochromator[J]. Metrology Science and Technology, 2021, 65(5): 8-13. doi: 10.12338/j.issn.2096-9015.2020.9024

Citation:

GUO Siming, HOU Dongjie, WANG Eryan, SONG Ruiqiang, ZHOU Pengyue. Structure Improvement and Stability Research of Double Crystal Monochromator[J]. Metrology Science and Technology, 2021, 65(5): 8-13. doi: 10.12338/j.issn.2096-9015.2020.9024

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Structure Improvement and Stability Research of Double Crystal Monochromator

doi: 10.12338/j.issn.2096-9015.2020.9024

GUO Siming^1
,,
HOU Dongjie^{1, 2},
WANG Eryan^{1, 3},
SONG Ruiqiang^{1, 3},
ZHOU Pengyue^{1, 4}

1.
National Institute of Metrology, Beijing 100029, China
2.
Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China
3.
Chengdu University of Technology, Chengdu 610059, China
4.
Hebei University of Science and Technology, Shijiazhuang 050018, China

Available Online: 2021-04-21
Publish Date: 2021-06-24

Abstract

Abstract

The double crystal diffraction structure based on Bragg diffraction is the core component of the monochromator commonly used in synchrotron radiation beamlines and monochromatic X-ray radiation devices. The stability of the monochromatic X-ray generated by the T-structure double crystal monochromator was investigated. In addition, inspired by the Channel-cut monochromator structure, a new double crystal monochromator structure was designed, and stability of the diffraction-generated monochromatic X-ray was tested. The experimental results show that the stability of the monochromatic X-ray flux generated by the T-structure double crystal monochromator is poor due to its structural defects, while the stability of the monochromatic X-ray flux generated by the new double crystal monochromator structure is better than 1.0%, and the energy range and dose rate of the monochromatic X-ray are significantly improved.
- bragg diffraction,
- monochromatic X-ray,
- double crystal monochromator,
- Channel-cut

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References(12)

References

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