Design and construction status of CLIO

被引：30

作者：

Ohashi, M ^{[1
]}

Kuroda, K

Miyoki, S

Uchiyama, T

Yamamoto, K

Kasahara, K

Shintomi, T

Yamamoto, A

Haruyama, T

Saito, Y

Higashi, Y

Suzuki, T

Sato, N

Tomaru, T

Tatsumi, D

Telada, S

Ando, M

Araya, A

Takemoto, S

Higashi, T

Momose, H

Akamatsu, J

Morii, W

机构：

[1] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan

[2] Natl Astron Observ, Mitaka, Tokyo 1818588, Japan

[3] High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[4] Natl Metrol Inst Japan, AIST Tsukuba Cent 3, Tsukuba, Ibaraki 3058563, Japan

[5] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[6] Univ Tokyo, Earthquake Res Inst, Tokyo 1130032, Japan

[7] Kyoto Univ, Dept Geophys, Sakyo Ku, Kyoto 6068502, Japan

[8] Kyoto Univ, Disaster Prevent Res Inst, Uji, Kyoto 6110011, Japan

来源：

CLASSICAL AND QUANTUM GRAVITY | 2003年 / 20卷 / 17期

关键词：

D O I：

10.1088/0264-9381/20/17/303

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Construction of CLIO (cryogenic laser interferometer observatory) with 100 m baseline length has begun in the Kamioka mine. The tunnel for CLIO has been dug and infrastructure work is now in progress. CLIO is the final step to LCGT (large scale cryogenic gravitational wave telescope) and the first practical construction of a cryogenic interferometer in the world. The objective of CLIO is to demonstrate two of three features of LCGT, which are to utilize the quietness and stable environment of the underground site and to adopt cryogenic sapphire mirrors for thermal noise reduction. Also, it is a joint project by gravitational wave and geophysics researchers. CLIO has a locked Fabry-Perot configuration equipped with ring mode cleaners and cryocoolers to cool the sapphire mirrors to 20 K. The noise level of CLIO is designed to trace the thermoelastic noise of sapphire mirrors which varies from 10(-18) m Hz(-1/2) at 300 K to 10(-19) m Hz(-1/2) at 20 K around 100 Hz. A 7 m single-arm cryogenic test facility has been built at ICRR (Institute for Cosmic Ray Research), while the 20 m room temperature interferometer is in operation at Kamioka. Technical knowledge developed by these prototypes will be leveraged to realize CLIO.

引用

页码：S599 / S607

页数：9

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