On the possibility of extracting part of a beam of negatively charged particles from an accelerator using a bent crystal

I. V. Kyryllin; N. F. Shul’ga

doi:10.1140/epjc/s10052-023-11196-5

2022 Impact factor 4.4

Particles and Fields

Open Access

Eur. Phys. J. C (2023) 83: 34
https://doi.org/10.1140/epjc/s10052-023-11196-5

Regular Article - Experimental Physics

On the possibility of extracting part of a beam of negatively charged particles from an accelerator using a bent crystal

I. V. Kyryllin¹^,2^a and N. F. Shul’ga¹^,2

¹ Akhiezer Institute for Theoretical Physics, National Science Center “Kharkiv Institute of Physics and Technology”, Akademicheskaya Str., 1, 61108, Kharkiv, Ukraine
² V.N. Karazin Kharkiv National University, Svobody Sq. 4, 61022, Kharkiv, Ukraine

^a i.kyryllin@gmail.com

Received: 3 June 2022
Accepted: 4 January 2023
Published online: 18 January 2023

Abstract

The efficiency of deflection of high-energy negatively charged particles by a bent crystal using planar channeling and stochastic deflection mechanism is compared. The comparison is carried out on the example of antiprotons with kinetic energy from 1 to 14 GeV, which will be achievable on accelerators of the Facility for Antiproton and Ion Research. The comparison showed that both deflection mechanisms make it possible to deflect a part of the antiproton beam in the specified energy range by angles of the order of several hundred microradians, which significantly exceed the critical angle of planar channeling. At the same time, the stochastic deflection mechanism makes it possible to deflect particles at much larger angles than planar channeling.

© The Author(s) 2023

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