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dc.contributor.authorShinozak, K.en_US
dc.contributor.authorSugita, H.en_US
dc.contributor.authorSato, Y.en_US
dc.contributor.authorMitsuda, K.en_US
dc.contributor.authorNakagawa, T.en_US
dc.contributor.authorFujimoto, R.en_US
dc.contributor.authorNarasaki, K.en_US
dc.contributor.authorKanao, K.en_US
dc.contributor.authorTsunematsu, S.en_US
dc.contributor.authorOtsuka, K.en_US
dc.date.accessioned2011-04-28T15:33:00Z
dc.date.available2011-04-28T15:33:00Z
dc.date.issued2008-05
dc.identifier.isbn978-1-934021-02-6
dc.identifier.urihttp://hdl.handle.net/1853/38741
dc.descriptionPresented at the 16th International Cryocooler Conference, held May 17-20, 2008 in Atlanta, Georgia.en_US
dc.description.abstractMechanical coolers are a key enabling technology to utilize low temperature scientific instruments for the new generation of space science missions, such as the new X-ray astronomical satellite Astro-H, and the new infrared astronomical satellite SPICA. In particular, 1-4 K class mechanical coolers are required as a precooler for the low temperature detector’s cooling system and to cool a space telescope with a very low radiation background. In JAXA, two-stage Stirling coolers (2ST) for 20 K and a 4He Joule-Thomson (J-T) cooler for 4.5 K have been successfully developed and operated in space, e.g. Akari (Astro-F) and the Japanese Experiment Module/SMILES. Based on this heritage, the 2ST coolers and the 4He J-T coolers have been modified and upgraded to achieve high reliability, more cooling power, lower mechanical vibration, and longer life time. In performance tests of upgraded prototypes of the mechanical coolers, the required cooling power of each cooler has been obtained. The engineering model of the 4 K class cooler, consisting of two 2ST coolers and a 4He J-T cooler for the Astro-H payload will be fabricated, and undergo performance tests, including the level of vibration and cooling behavior at the expected heat load in Astro-H. In this paper, the R&D status and performance test results of the 2ST coolers and the 4He J-T coolers are reported. We also report on the development of 3He J-T cooler for the SPICA detectors.en_US
dc.language.isoen_USen_US
dc.publisherGeorgia Institute of Technologyen_US
dc.relation.ispartofseriesCryocoolers 16. Cryocoolers for 1-30 K aerospace applicationsen_US
dc.subjectCryocoolers for 1-30 k aerospace applicationsen_US
dc.subjectMechanical cryocoolersen_US
dc.subjectTwo stage Stirling coolersen_US
dc.titleDevelopments of 1-4 K Class Space Mechanical Coolers for New Generation Satellite Missions in JAXAen_US
dc.typeProceedingsen_US
dc.contributor.corporatenameJapan Aerospace Exploration Agencyen_US
dc.contributor.corporatenameKanazawa Universityen_US
dc.contributor.corporatenameSumitomo Heavy Industriesen_US
dc.publisher.originalICC Pressen_US


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