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Bimorph Actuator: a New Instrument for Time-Resolved X-ray Diffraction and Spectroscopy

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Abstract

A new approach to time-resolved X-Ray experiments implementation at both laboratory X-Ray sources and synchrotron facilities is presented. A time resolution of few milliseconds per one rocking curve measurement can be reached by using a new X-Ray optics element – vibrating bimorph actuator based on a bidomain bending-type crystal of lithium niobate. The ranges of X-Ray beam angular or energy changeover are defined by the actuator operational mode and resonant response. The time and spatial parameters for X-ray optical element based on bimorph actuator have been estimated. The ranges of actuator angular changeover in a dynamical mode at various frequencies (including resonance) of bidomain crystal vibrations have reached up to 100 arcseconds in а quasistatic mode and more than 500 arcseconds in а resonance mode at the control voltage of 22 V and vibration frequency up to 8 kHz (which corresponds to time resolution of 0.125 milliseconds). The numerical algorithms for processing of the experimental data measured using the bimorph optical element have been developed. The examples of X-Ray beam angular changeover reached in different actuator vibration modes and possible application of such approach are presented in the work.

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Authors and Affiliations

  1. Russian Academy of Sciences, Shubnikov Institute of Crystallography of the Federal Scientific Research Centre “Crystallography and Photonics”, Moscow, Russia

    A.E. Blagov, A.G. Kulikov, N.V. Marchenkov, Y.V. Pisarevsky & M.V. Kovalchuk

  2. National Research Centre, “Kurchatov Institute”, Moscow, Russia

    A.E. Blagov, A.G. Kulikov, N.V. Marchenkov, Y.V. Pisarevsky & M.V. Kovalchuk

Authors
  1. A.E. Blagov
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  2. A.G. Kulikov
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  3. N.V. Marchenkov
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  4. Y.V. Pisarevsky
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  5. M.V. Kovalchuk
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Corresponding author

Correspondence to N.V. Marchenkov.

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Funding

This work was supported by the Russian Foundation for Basic Research (Grant № 16-32-60045 mol_a_dk).

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Blagov, A., Kulikov, A., Marchenkov, N. et al. Bimorph Actuator: a New Instrument for Time-Resolved X-ray Diffraction and Spectroscopy. Exp Tech 41, 517–523 (2017). https://doi.org/10.1007/s40799-017-0194-1

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  • DOI: https://doi.org/10.1007/s40799-017-0194-1

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