Home > Experimental results of the laserwire emittance scanner for LINAC4 at CERN |
Article | |
Report number | arXiv:1511.05876 |
Title | Experimental results of the laserwire emittance scanner for LINAC4 at CERN |
Author(s) | Hofmann, Thomas (CERN ; Royal Holloway, U. of London ; U. Erlangen-Nuremberg (main)) ; Boorman, Gary E. (Royal Holloway, U. of London) ; Bosco, Alessio (Royal Holloway, U. of London) ; Bravin, Enrico (CERN) ; Gibson, Stephen M. (Royal Holloway, U. of London) ; Kruchinin, Konstantin O. (Royal Holloway, U. of London) ; Raich, Uli (CERN) ; Roncarolo, Federico (CERN) ; Zocca, Francesca (CERN) |
Publication | 2016-09-11 |
Imprint | 18 Nov 2015 |
Number of pages | 9 |
Note | Comments: Presented at the International Conference on Laser Applications at Accelerators, LA3NET 2015; Submitted to Nucl. Instr. and Meth. in Phys. Res. section A Presented at the International Conference on Laser Applications at Accelerators, LA3NET 2015; Submitted to Nucl. Instr. and Meth. in Phys. Res. section A |
In: | Nucl. Instrum. Methods Phys. Res., A 830 (2016) 526-531 |
DOI | 10.1016/j.nima.2016.02.018 |
Subject category | Accelerators and Storage Rings |
Accelerator/Facility, Experiment | CERN LINAC4 |
Abstract | Within the framework of the LHC Injector Upgrade (LIU), the new LINAC4 is currently being commissioned to replace the existing LINAC2 proton source at CERN. After the expected completion at the end of 2016, the LINAC4 will accelerate H- ions to 160 MeV. To measure the transverse emittance of the H- beam, a method based on photo-detachment is proposed. This system will operate using a pulsed laser with light delivered via an optical fibre and subsequently focused through a thin slice of the H- beam. The laser photons have sufficient energy to detach the outer electron and create H0/e- pairs. In a downstream dipole, the created H0 particles are separated from the unstripped H- ions and their distribution is measured with a dedicated detector. By scanning the focused laser across the H- beam, the transverse emittance of the H- beam can be reconstructed. This paper will first discuss the concept, design and simulations of the laser |
Copyright/License | arXiv nonexclusive-distrib. 1.0 publication: © 2016-2024 The Author(s) (License: CC-BY-4.0) |