KAGRA Cryostat (image) University of Tokyo Share Print E-Mail Caption The cryostat houses a sapphire cryogenic mirror. Credit ICRR Usage Restrictions For use related to this press release. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.