| Published Articles | |
| Title | First Beam Test of Laser Engineered Surface Structures (LESS) at Cryogenic Temperature in CERN SPS Accelerator |
| Author(s) | Salemme, Roberto (CERN ; Euratom, St. Paul Lez Durance) ; Abdolvand, Amin (Dundee U.) ; Baglin, Vincent (CERN) ; Calatroni, Sergio (CERN) ; Chiggiato, Paolo (CERN) ; Di Girolamo, Beniamino (CERN) ; Garcia-Tabares Valdivieso, Elisa (CERN) ; Jenninger, Berthold (CERN) ; Prever-Loiri, Laurent (CERN) ; Sitko, Monika (CERN) ; Wackerow, Stefan (Dundee U.) |
| Publication | 2018 |
| Number of pages | 4 |
| In: | J. Phys.: Conf. Ser. 1067, 8 (2018) pp.082017 |
| In: | 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPMG005 |
| DOI | 10.18429/JACoW-IPAC2018-WEPMG005 10.1088/1742-6596/1067/8/082017 |
| Subject category | Accelerators and Storage Rings |
| Accelerator/Facility, Experiment | CERN SPS |
| Abstract | Electron cloud mitigation is an essential requirement for accelerators of positive particles with high intensity beams to guarantee beam stability and limited heat load in cryogenic systems. Laser Engineered Surface Structures (LESS) are being considered, within the High Luminosity upgrade of the LHC collider at CERN (HL-LHC), as an option to reduce the Secondary Electron Yield (SEY) of the surfaces facing the beam, thus suppressing the electron cloud phenomenon. As part of this study, a 2.2 m long Beam Screen (BS) with LESS has been tested at cryogenic temperature in the COLD bore EXperiment (COLDEX) facility in the SPS accelerator at CERN. In this paper, we describe the manufacturing procedure of the beam screen, the employed laser treatment technique and discuss our first observations in COLDEX confirming electron cloud suppression. |
| Copyright/License | publication: (License: CC-BY-3.0) CC-BY-3.0 |
Corresponding record in: Inspire
Record created 2019-04-19, last modified 2021-02-09
