| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1507406 | Cryogenics | 2014 | 7 Pages |
Abstract
This paper presents measurement results of the heat transfer through Rutherford NbTi cable samples immersed in a He II bath and subjected to the pressure loads simulating the counteracting of the Lorentz forces observed in powered magnets. The Rutherford cable samples that were tested used different electrical insulation wrapping schemes, including the scheme that is presently used and the proposed scheme for future LHC magnets. A new porous polyimide cable insulation with enhanced helium permeability was proposed in order to improve the evacuation of heat form the NbTi coil to He II bath. These tests were performed in a dedicated Claudet-type cryostat in pressurized He II at 1.9Â K and 1Â bar.
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Authors
M. Strychalski, M. Chorowski, J. Polinski,