The status of KAGRA underground cryogenic gravitational wave telescope
The status of KAGRA underground cryogenic gravitational wave telescope
复制标题
KAGRA地下低温引力波望远镜现状
DOI：
10.1088/1742-6596/1342/1/012014
复制
发表时间：
2020
期刊：
影响因子：
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通讯作者：
Akutsu T. and et al.
中科院分区：
文献类型：
--
作者：
A. Akutsu;H. Shinkai;KAGRA collaboration;Akutsu T. and et al.
KAGRA是一个3公里长的干涉引力波望远镜，位于日本神冈矿。这是首个为降低地震噪声而建在地下的千米级引力波望远镜，也是首个采用试验质量低温冷却来降低热噪声的千米级望远镜。干涉仪在隧道内的基础设施建设和简单的3公里迈克尔逊配置的干涉仪的初始阶段操作已经完成。预计在2018年进行第一次低温操作，预计在2020年进行全干涉仪观测。介绍了干涉仪的基本结构和KAGRA的现状。
KAGRA is a 3-km interferometric gravitational wave telescope located in the Kamioka mine in Japan. It is the first km-class gravitational wave telescope constructed underground to reduce seismic noise, and the first km-class telescope to use cryogenic cooling of test masses to reduce thermal noise. The construction of the infrastructure to house the interferometer in the tunnel, and the initial phase operation of the interferometer with a simple 3-km Michelson configuration have been completed. The first cryogenic operation is expected in 2018, and the observing runs with a full interferometer are expected in 2020s. The basic interferometer configuration and the current status of KAGRA are described.