Vacuum and Insulation Technology for Large-scale Cryogenic Gravitational wave Telescope (LCGT)
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- OHMORI Takao
- Department of Aerospace Engineering, Teikyo University
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- TAKADA Satoshi
- Department of Aerospace Engineering, Teikyo University
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- SATO Yoshihiro
- KEK-High Energy Accelerator Research Organization
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- SAITO Yoshio
- KEK-High Energy Accelerator Research Organization
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- TAKAHASHI Ryutaro
- Institute for Cosmic Ray Research, University of Tokyo
Bibliographic Information
- Other Title
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- 大型低温重力波望遠鏡（ＬＣＧＴ）における真空技術と断熱技術
- オオガタ テイオン ジュウリョクハ ボウエンキョウ LCGT ニ オケル シンクウ ギジュツ ト ダンネツ ギジュツ
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Description
The Large-scale Cryogenic Gravitational wave Telescope (LCGT) requires ultrahigh vacuum tubes, through which laser beams passed. Two 3-km vacuum tubes are kept at a vacuum pressure of ~10-7 Pa so as to reduce the scattering effect caused by residual gas molecules. The mirrors of the main interferometer are cooled to 20 K to reduce thermal noise. The evacuated multi-layer insulation (MLI) consists of organic films with aluminum coatings, which are generally used as thermal insulation for cryostats. We found a lightweight MLI film that has a low out-gassing rate comparable to that of the buffed surface of stainless steel.
Journal
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- TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)
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TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 46 (7), 408-414, 2011
CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282679589320064
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- NII Article ID
- 10029655827
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- NII Book ID
- AN00333419
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- ISSN
- 18800408
- 03892441
- http://id.crossref.org/issn/00112275
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- NDL BIB ID
- 11203828
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed