• Open Access

Comprehensive study of beam focusing by crystal devices

W. Scandale et al.
Phys. Rev. Accel. Beams 21, 014702 – Published 18 January 2018

Abstract

This paper is devoted to an experimental study of focusing and defocusing positively charged particle beams with the help of specially bent single crystals. Four crystals have been fabricated for this purpose. The studies have been performed at the CERN SPS in 400GeV/c proton and 180GeV/c pion beams. The results of measurements of beam envelopes are presented. The rms size of the horizontal profile at the focus was 5–8 times smaller than at the exit of the crystals. The measured focal lengths were 4–21 m. The results of measurements are in good agreement with calculations. Possible applications of focusing crystals in present and future high energy accelerators are discussed.

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  • Received 30 June 2017

DOI:https://doi.org/10.1103/PhysRevAccelBeams.21.014702

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Accelerators & Beams

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Vol. 21, Iss. 1 — January 2018

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