First cryogenic test operation of underground km-scale gravitational-wave observatory KAGRA
書誌事項
- 公開日
- 2019-07-23
- 資源種別
- journal article
- 権利情報
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- https://publishingsupport.iopscience.iop.org/iop-standard/v1
- https://iopscience.iop.org/info/page/text-and-data-mining
- DOI
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- 10.1088/1361-6382/ab28a9
- 10.48550/arxiv.1901.03569
- 公開者
- IOP Publishing
この論文をさがす
説明
<jats:title>Abstract</jats:title> <jats:p> KAGRA is a second-generation interferometric gravitational-wave detector with 3 km arms constructed at Kamioka, Gifu, Japan. It is now in its final installation phase, which we call <jats:italic>bKAGRA</jats:italic> (baseline KAGRA), with scientific observations expected to begin in late 2019. One of the advantages of KAGRA is its underground location of at least 200 m below the ground surface, which reduces seismic motion at low frequencies and increases the stability of the detector. Another advantage is that it cools down the sapphire test mass mirrors to cryogenic temperatures to reduce thermal noise. In April–May 2018, we operated a 3 km Michelson interferometer with a cryogenic test mass for 10 d, which was the first time that km-scale interferometer was operated at cryogenic temperatures. In this article, we report the results of this ‘bKAGRA Phase 1’ operation. We have demonstrated the feasibility of 3 km interferometer alignment and control with cryogenic mirrors. </jats:p>
収録刊行物
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- Classical and Quantum Gravity
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Classical and Quantum Gravity 36 (16), 165008-, 2019-07-23
IOP Publishing
関連未分類成果物
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キーワード
- 670
- Physics - Instrumentation and Detectors
- 115
- FOS: Physical sciences
- General Relativity and Quantum Cosmology (gr-qc)
- gravitational waves, cryogenic laser interferometer, sapphire, underground
- General Relativity and Quantum Cosmology
- noise: thermal
- surface
- gravitational waves; cryogenic laser interferometer; sapphire; underground
- KAGRA
- [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
- mirror
- Instrumentation and Methods for Astrophysics (astro-ph.IM)
- 020
- gravitational radiation
- detector: stability
- temperature
- alignment
- Instrumentation and Detectors (physics.ins-det)
- observatory
- frequency: low
- cryogenics
- [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]
- gravitational radiation detector: interferometer
- Astrophysics - Instrumentation and Methods for Astrophysics
詳細情報 詳細情報について
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- CRID
- 1361131419251113472
-
- ISSN
- 13616382
- 02649381
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- 資料種別
- journal article
-
- データソース種別
-
- Crossref
- KAKEN
- OpenAIRE
- IRDB
