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Ultra-relativistic electron beams deflection by quasi-mosaic crystals

The European Physical Journal D volume 76, Article number: 236 (2022) Cite this article

Abstract

This paper provides an explanation of the key effects behind the deflection of ultra-relativistic electron beams by means of oriented ‘quasi-mosaic’ Bent Crystals (qmBC). It is demonstrated that accounting for specific geometry of the qmBC and its orientation with respect to a collimated electron beam, its size and emittance is essential for an accurate quantitative description of experimental results on the beam deflection by such crystals. In an exemplary case study, a detailed analysis of the recent experiment at the SLAC facility is presented. The methodology developed has enabled to understand the peculiarities in the measured distributions of the deflected electrons. Also, this achievement constitutes an important progress in the efforts toward the practical realization of novel gamma-ray crystal-based light sources and puts new challenges for the theory and experiment in this research area.

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Data Availability

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: All data generated are included into this published article. The data presented in this manuscript can be available upon reasonable request to the authors.]

Notes

  1. The quoted value of \(\theta _{\textrm{L}}\) is calculated in Ref. [8] using the Doyle-Turner potential [23]. It corresponds to the crystal temperature \(T=300\) K. The results of simulations presented in our paper refer to the same temperature.

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Funding

The work was supported in part by the DFG Grant (Project No. 413220201) and by the H2020 RISE-NLIGHT project (GA 872196). We acknowledge helpful discussions with Andrea Mazzolari, Vincenzo Guidi, Hartmut Backe and Werner Lauth. Frankfurt Center for Scientific Computing (CSC) is acknowledged for providing computer facilities. We are grateful to the anonymous referee for constructive comments.

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  1. MBN Research Center, Altenhöferallee 3, 60438, Frankfurt am Main, Germany

    Gennady B. Sushko, Andrei V. Korol & Andrey V. Solov’yov

Authors
  1. Gennady B. Sushko
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  2. Andrei V. Korol
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  3. Andrey V. Solov’yov
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All authors contributed equally to the paper.

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Correspondence to Andrey V. Solov’yov.

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Sushko, G.B., Korol, A.V. & Solov’yov, A.V. Ultra-relativistic electron beams deflection by quasi-mosaic crystals. Eur. Phys. J. D 76, 236 (2022). https://doi.org/10.1140/epjd/s10053-022-00567-4

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