Bent Crystal Design and Characterization for High-Energy Physics Experiments

TL;DR

This paper explores the design, fabrication, and characterization of bent crystals for high-energy physics, highlighting their potential as efficient waveguides for relativistic particle beams and detailing technological and experimental advancements.

Contribution

It introduces new bending schemes, machining strategies, and high-precision characterization methods for bent crystals used in particle accelerators.

Findings

Demonstrated effective channeling in bent crystals

Developed optimized bending and machining techniques

Established experimental setups for crystal characterization

Abstract

Bent crystal are widely used as optics for X-rays, but via the phenomenon of planar channeling they may act as waveguide for relativistic charged particles beam as well, outperforming some of the traditional technologies currently employed. A physical description of the phenomenon and the resulting potential for applications in a particle accelerator is reported. The elastic properties of the anisotropic crystal lattice medium are discussed, introducing different types of curvature which can enable a wide array of bending schemes optimized for each different case features. The technological development of machining strategy and bending solutions useful for the fabrication of crystals suitable in high energy particle manipulations are described. As well as the high precision characterization processes developed in order to satisfy the strict requirements for installation in an accelerator. Finally, the characterization of channeling phenomenon in bent crystal is described, pointing out several experimental setups suitable to comply each specific case constrains.