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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/39596199
Record Status
Checked
Record Id
39596199
Title
Towards Implementation of Laser Engineered Surface Structures for Electron Cloud Mitigation
Contributors
M Sitko
,
V Baglin
,
S Calatroni
,
P Chiggiato
,
B Di Girolamo
,
E Garcia-Tabares Valdivieso
,
M Taborelli
,
A Abdolvand
,
D Bajek
,
S Wackerow
,
M Colling (STFC Daresbury Lab.)
,
TJ Jones (STFC Daresbury Lab.)
,
PA McIntosh (STFC Daresbury Lab.)
Abstract
The LHC operation has proven that the electron cloud could be a significant limiting factor in machine performance, in particular for future High Luminosity LHC (HL-LHC) beams. Electron clouds, generated by electron multipacting in the beam pipes, leads to beam instabilities and beam-induced heat load in cryogenic systems. Laser Engineered Surface Structures (LESS) is a novel surface treatment which changes the morphology of the internal surfaces of vacuum chambers. The surface modification results in a reduced secondary electron yield (SEY) and, consequently, in the eradication of the electron multipacting. Low SEY values of the treated surfaces and flexibility in choosing the laser parameters make LESS a promising treatment for future accelerators. LESS can be applied both in new and existing accelerators owing to the possibility of automated in-situ treatment. This approach has been developed and optimised for the LHC beam screens in which the electron cloud has to be mitigated before the HL-LHC upgrade. We will present the latest steps towards the implementation of LESS.
Organisation
ASTeC
,
TECH
,
STFC
Keywords
Funding Information
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Language
English (EN)
Type
Details
URI(s)
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Year
Paper In Conference Proceedings
In 9th International Particle Accelerator Conference (IPAC18), Vancouver, Canada, 29 Apr 2018 - 4 May 2018, (2018): 1220-1223.
http://accelconf.…8/papers/tuzgbe3.pdf
2018
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