Source:http://linkedlifedata.com/resource/pubmed/id/12564490
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
4
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| pubmed:dateCreated |
2003-2-4
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| pubmed:abstractText |
The experimental cryogenic performance of 160-mm-diameter silicon carbide (SiC) mirrors, one of which, a 700-mm-diameter mirror, is to be used as a primary mirror of the Japanese Infrared Astronomical Satellite ASTRO-F, is described. The mirrors are made from a sandwich-type SiC material that comprises a light porous core and a dense chemical-vapor-deposited coat of SiC. Three mirrors were manufactured consecutively, and changes in their surface contours related to temperature were measured with an interferometer when the mirrors were placed in a liquid-helium cryostat. Owing to significant improvements in manufacturing, the third SiC mirror showed only slight deformation as the temperature decreased from 300 to 6 K, which indicates high thermal strain homogeneity for a well-controlled sandwich-type SiC mirror.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
|
| pubmed:month |
Feb
|
| pubmed:issn |
0003-6935
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:day |
1
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| pubmed:volume |
42
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| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
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| pubmed:pagination |
708-14
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| pubmed:dateRevised |
2003-11-4
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| pubmed:year |
2003
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| pubmed:articleTitle |
Cryogenic optical testing of sandwich-type silicon carbide mirrors.
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| pubmed:affiliation |
Institute of Space and Astronautical Science, Kanagawa 229-8510, Japan. kaneda@ir.isas.ac.jp
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| pubmed:publicationType |
Journal Article
|