May 29, 2017 to June 2, 2017
Intercontinental Hotel
Europe/Zurich timezone
There is a live webcast for this event.

Advancements in low secondary electron yield carbon coatings for electron cloud mitigation

Not scheduled
2m
Intercontinental Hotel

Intercontinental Hotel

Budapester Str. 2, 10787 Berlin, Germany
Board: 2TUP50

Speaker

Michael Vogel (University Siegen)

Description

We report on the progress of carbon coating for multipacting mitigation on SRF-Guns. The findings comprise valuable information for e.g. high-energy charged particle accelerators where the beam-induced electron multiplication leads to electron cloud build up on the beam path. Reports have shown secondary electron yields (SEY or δ) of carbon coatings of less than 1 which is sufficient for most of the applications. Here we show carbon coatings displaying different morphologies leading to SEYs of 0.6 < δ ≤ 1. One of the vital requirements in accelerator systems is the elimination of possible contamination by delamination of the coating. To investigate the adhesion scratch tests have been carried out and a method to significantly improve the adhesion of carbon coatings on metal surfaces by a titanium interlayer is shown.

Primary author

Michael Vogel (University Siegen)

Co-authors

Danica Frettloeh (Siegen University) Xin Jiang (Siegen University)

Presentation materials

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