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X-Ray Three-Crystal Interferometer with Manual Control

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Journal of Contemporary Physics (Armenian Academy of Sciences) Aims and scope

Abstract

An X-ray three-block interferometer with a thin neck between the analyzer and mirror blocks is designed. The mutual arrangement of these blocks is changed with the help of levers with weights at the ends, which made it possible to rotate the analyzer block with the splitter blocks (S) and the mirror block fixed. Sectional topograms of interference patterns at different torques show that rotational moiré prevails in the recorded moiré patterns. With an increase in the mechanical torque, the period of the moiré fringes increases; at some moment, the moiré pattern disappears, and the interference field becomes uniform, which means that the interferometer becomes an “ideal”: further increase in the torque results in the appearance of a rotational moiré with a change in the sign of the slope of the interference fringes. A theoretical interpretation of all observed phenomena is given.

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Funding

The study was carried out with the financial support of the Science Committee of the Republic of Armenia within the framework of Scientific Project No. 21AG-1C069.

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Authors and Affiliations

  1. Institute of Applied Problems of Physics, NAS of Armenia, Yerevan, Armenia

    H. R. Drmeyan, K. G. Trouni, T. R. Muradyan & A. V. Shahverdyan

Authors
  1. H. R. Drmeyan
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  2. K. G. Trouni
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  3. T. R. Muradyan
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  4. A. V. Shahverdyan
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Corresponding author

Correspondence to K. G. Trouni.

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The authors declare no conflict of interest.

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Translated by V. Musakhanyan

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Drmeyan, H.R., Trouni, K.G., Muradyan, T.R. et al. X-Ray Three-Crystal Interferometer with Manual Control. J. Contemp. Phys. 58, 193–197 (2023). https://doi.org/10.1134/S1068337223020081

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  • DOI: https://doi.org/10.1134/S1068337223020081

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