Apr 9 – 13, 2018
Beurs van Berlage
Europe/Zurich timezone

A facility for studying SEY from LASE surfaces at cryogenic temperatures

Apr 10, 2018, 5:00 PM
1h 30m
Beurs van Berlage

Beurs van Berlage

Damrak 243, 1012 ZJ Amsterdam, Netherlands
Board: 2AMSP21
EuroCirCol Poster session

Speaker

Taaj Sian (STFC)

Description

The Future Circular Collider (FCC-hh) will have a beam screen with T between 20 and 60 K. Electron cloud mitigation will be critical for the FCC-hh and it has been specified that the wall material needs to have a Secondary Electron Yield (SEY) < 1. Since the LASE surfaces with SEY<1 are the baseline electron cloud mitigation technique, it is critically important to study the behaviour of the LASE surfaces at cryogenic temperatures with and without cryosorbed gas. The FCC-hh beam screen made of copper laminated stainless steel will be partially treated with LASE in two (in dipoles) or four (in quadrupoles) strips. In this talk we will report the design and commissioning of the cryogenic facility for SEY studies at Daresbury Laboratory and the first results of LASE samples at 20-60 K with and without cryosorbed gasses on the surface.

Primary author

Co-authors

Oleg Malyshev (STFC Daresbury Laboratory) Shrikant Manowar Pattalwar (STFC Daresbury Laboratory (GB)) Reza Valizadeh (STFC Daresbury Laboratory)

Presentation materials

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