Status of the cryogenic system for the interferometric cryogenic gravitational wave telescope, KAGRA

Document #:

JGW-G1301906-v1

Document type:

G

Submitted by:

Nobuhiro Kimura

Updated by:

Nobuhiro Kimura

Document Created:

09 Oct 2013, 14:08

Contents Revised:

09 Oct 2013, 14:08

DB Info Revised:

09 Oct 2013, 14:08

Abstract:

KAGRA is the cryogenic interferometric gravitational wave telescope designed for the direct detection of the gravitational waves from the astronomical sources.
To achieve the best sensitivity, one of the most outstanding challenges is to cool and keep the mirrors at 20K to reduce the thermal noise.
We developed four cryostats and sixteen very-low-vibration cryocooler units to accomplish our purpose. The outline of the cryogenic design, fabrication, and the results of the cryogenic performance test of the cryostats and cryocooler units are presented in this seminar.

Files in Document:

• Presentation File (CEA:Saclay-talk130927-Final.ppt, 24.3 MB)

Topics:

• Management:Seminar
• Activity:KAGRA
• Detector:Cryogenic

Authors:

• Nobuhiro Kimura

Keywords:

Cryogenic system Cryostat Cryo-cooler unit

Notes and Changes:

Seminar at CEA/Saclay on 2013/Sep/27.