17–22 Jun 2018
Europe/Zurich timezone
15th European Vacuum Conference

LASE surfaces for the mitigation of the Electron cloud in positively charged accelerators

20 Jun 2018, 16:50
1h 50m
Main Lobby (CICG)

Main Lobby

CICG

Poster Thin Film & Surface Engineering Poster Session Wednesday

Speaker

taaj sian (STFC)

Description

The formation of an electron cloud is an issue that effects proton accelerators. It is a phenomena caused by electrons interacting with the surface of the walls of the accelerator resulting in the production of more electrons. It has already been seen that Laser Ablation Surface Engineering (LASE) of surfaces can reduce the Secondary Electron Yield (SEY) of Copper to below unity. In this work we will report on the surface analysis for a variety of LASE surfaces with different laser parameters (wavelength, scan speed, pitch, repetition rate, power, and pulse length).

Author

taaj sian (STFC)

Co-authors

Oleg Malyshev (STFC Daresbury Laboratory) Dr guoxing xia (University of Manchester) Dr Reza Valizadeh (STFC)

Presentation materials

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