The cryogenic challenge: status of the KAGRA project

11th Edoardo Amaldi Conference on Gravitational Waves

Flaminio, Raffaele^1

National Astronomical Observatory of Japan, Mitaka, Tokyo

181-8588, Japan^1

关键词: Cryogenic operations;    Cryogenic temperatures;    Gravitational wave detectors;    Laser interferometer;    Underground locations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/716/1/012034/pdf
DOI  :  10.1088/1742-6596/716/1/012034

来源: IOP

【 摘 要 】

The KAGRA project is building a gravitational wave detector inside the Kamioka mine (Japan). The detector is based on a laser interferometer with arms 3 km in length. In addition to its underground location the detector will be characterized by its mirrors made of sapphire and operated at cryogenic temperature. This paper describes the status of the construction at the site and gives an overview of the developments ongoing to prepare the cryogenic operation.