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

Structure Improvement and Stability Research of Double Crystal Monochromator

doi: 10.12338/j.issn.2096-9015.2020.9024
  • Available Online: 2021-04-21
  • Publish Date: 2021-06-24
  • 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.
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