Physics – Geophysics
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cqgra..20s.599o&link_type=abstract
Classical and Quantum Gravity, Volume 20, Issue 17, pp. S599-S607 (2003).
Physics
Geophysics
15
Scientific paper
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.
Akamatsu Junpei
Ando Matthew
Araya Akito
Haruyama Tomiyoshi
Higashi Takeshi
No associations
LandOfFree
Design and construction status of CLIO does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Design and construction status of CLIO, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Design and construction status of CLIO will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1151726