| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1507958 | Cryogenics | 2010 | 4 Pages |
Abstract
Superconducting Sub-millimeter-wave Limb-Emission Sounder (SMILES) is to be operated aboard the Japanese Experiment Module (JEM) of the International Space Station (ISS) in 2009. SMILES uses two superconductor-insulator-superconductor (SIS) mixers for sub-millimeter-wave atmospheric observation and they are cooled to 4Â K levels by a cryogenic system with a two-stage Stirling cooler, a Joule-Thomson (JT) cycle cooler and a cryostat composed of three stages. Two-stage Stirling cooler precools the JT circuit and also cools radiation shields in the cryostat. JT circuit has three tube-in-tube type heat exchangers and an orifice for JT expansion in the cryostat. The cryogenic system is built, tested and delivered.
Keywords
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Materials Science
Electronic, Optical and Magnetic Materials
Authors
Kiyomi Otsuka, Shoji Tsunematsu, Akinobu Okabayashi, Katsuhiro Narasaki, Ryota Satoh,