| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1508276 | Cryogenics | 2008 | 9 Pages |
Abstract
A self-contained neon gas-gap heat switch featuring an internal charcoal adsorption pump has been developed and tested. This heat switch can be used with cold base temperature ranging from 17 K to 40 K offering an extension to sorption based helium gas-gap heat switch limited to below 20 K. For this prototype, an ON conductance about 74 mW/K and an OFF resistance about 3000 K/W were obtained, giving an ON/OFF conductance ratio about 220 at 20 K in agreement with calculations obtained from a simple model. These characteristics can be further optimized working on the geometry.
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Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
I. Catarino, G. Bonfait, L. Duband,