28 June 2015 to 2 July 2015
JW Marriott Starr Pass Resort
Etc/GMT-7 timezone

Cryostat design for the measurement of surface resistance of thin-film coated SRF Cavities

Not scheduled
2h
JW Marriott Starr Pass Resort

JW Marriott Starr Pass Resort

Tucson, Arizona USA
Poster Presentation CEC-07 - Superconducting RF Systems

Speaker

Shrikant Pattalwar (STFC Daresbury Laboratory, UK)

Description

A liquid helium cryostat has been developed for the measurement of surface resistance of thin-film coated SRF cavities at high frequencies (7.8 GHz). The technique is based on the measurement of RF power absorbed in the coated film using calorimetry. The thin film substrate forms the lower end of a pillbox-like cavity, which is separated from the upper-half of the cavity by a vacuum gap. This gives good thermal isolation between the sample and the rest of the cavity body and facilitates quick and easy replacement of the samples mounted on a cradle which is assembled and prepared in a clean room environment. This paper describes the cryostat design in detail with some initial results.

Primary author

Shrikant Pattalwar (STFC Daresbury Laboratory, UK)

Co-authors

Mr Edward Jordan (STFC Daresbury Laboratory) Oleg Malyshev (STFC Daresbury Laboratory) Dr Philippe Goudeket (STFC Darsbury Laboratory) Dr Reza Valizadeh (STFC Daresbury Laboratory) Mr Thomas Jones (STFC Daresbury Laboratory)

Presentation Materials

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