First accelerator test of vacuum components with laser-engineered surfaces for electron-cloud mitigation

Calatroni, Sergio and Valdivieso, Elisa Garcia-Tabares and Neupert, Holger and Nistor, Valentin and Fontenla, Ana Teresa Perez and Taborelli, Mauro and Chiggiato, Paolo and Malyshev, Oleg and Valizadeh, Reza and Wackerow, Stefan and Zolotovskaya, Svetlana and Gillespie, W. Allan and Abdolvand, Amin (2017) First accelerator test of vacuum components with laser-engineered surfaces for electron-cloud mitigation. Physical Review Accelerators and Beams, 20 (11). ISSN 2469-9888

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Abstract

Electron cloud mitigation is an essential requirement for high-intensity proton circular accelerators. Among other solutions, laser engineered surface structures (LESS) present the advantages of having potentially a very low secondary electron yield (SEY) and allowing simple scalability for mass production. Two copper liners with LESS have been manufactured and successfully tested by monitoring the electron cloud current in a dipole magnet in the SPS accelerator at CERN during the 2016 run. In this paper we report on these results as well as the detailed experiments carried out on samples—such as the SEYand topography studies—which led to an optimized treatment in view of the SPS test and future possible use in the HL-LHC.

Item Type:
Journal Article
Journal or Publication Title:
Physical Review Accelerators and Beams
ID Code:
88885
Deposited By:
Deposited On:
12 Dec 2017 14:24
Refereed?:
Yes
Published?:
Published
Last Modified:
08 Jul 2020 06:47