Double-crystal setup measurements at the CERN SPS
Abstract
In this paper, we discuss an experimental layout for the two-crystals scenario at the Super Proton Synchrotron (SPS) accelerator. The research focuses on a fixed target setup at the circulating machine in a frame of the Physics Beyond Colliders (PBC) project at CERN. The UA9 experiment at the SPS serves as a testbench for the proof of concept, which is planning to be projected onto the Large Hadron Collider (LHC) scale. The presented in the text configuration was used for the quantitative characterization of the deflected particle beam by a pair of bent silicon crystals. For the first time in the double-crystal configuration, a particle deflection efficiency by the second crystal of and was measured on the accelerator by means of the Timepix detector and Beam Loss Monitor (BLM) respectively. In this setup, a wide range angular scan allowed a possibility to \textit{in situ} investigate different crystal working regimes (channeling, volume reflection, etc.), and to measure a bent crystal torsion.
Cite
@article{arxiv.1909.02756,
title = {Double-crystal setup measurements at the CERN SPS},
author = {W. Scandale and F. Cerutti and L. S. Esposito and M. Garattini and S. Gilardoni and S. Montesano and R. Rossi and L. Burmistrov and S. Dubos and A. Natochii and V. Puill and A. Stocchi and V. Zhovkovska and F. Murtas and F. Addesa and F. Iacoangeli and F. Galluccio and A. D. Kovalenko and A. M. Taratin and G. I. Smirnov and A. S. Denisov and Yu. A. Gavrikov and Yu. M. Ivanov and L. P. Lapina and L. G. Malyarenko and V. V. Skorobogatov and A. G. Afonin and Yu. A. Chesnokov and A. A. Durum and V. A. Maisheev and Yu. E. Sandomirskiy and A. A. Yanovich and J. Borg and T. James and G. Hall and M. Pesaresi},
journal= {arXiv preprint arXiv:1909.02756},
year = {2019}
}
Comments
6 pages, 8 figures. To be submitted to PLB