教師資料查詢 | 類別: 期刊論文 | 教師: 劉國欽 LIOU GUO CHIN (瀏覽個人網頁)

標題:First cryogenic test operation of underground km-scale gravitational-wave observatory KAGRA
學年107
學期2
出版(發表)日期2019/07/23
作品名稱First cryogenic test operation of underground km-scale gravitational-wave observatory KAGRA
作品名稱(其他語言)
著者T Akutsu; M Ando; K Arai; Y Arai; S Araki; A Araya; N Aritomi; H Asada et al. (including G-C Liu)
單位
出版者
著錄名稱、卷期、頁數Classical and Quantum Gravity 36(16), 165008
摘要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 bKAGRA (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.
關鍵字gravitational radiation detector: interferometer;detector: stability;frequency: low;noise: thermal;cryogenics;KAGRA;temperature;mirror;gravitational radiation;observatory;alignment;surface
語言英文
ISSN
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別日本
公開徵稿
出版型式,電子版
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!