Hofmann, G. et al. (2015) Indium joints for cryogenic gravitational wave detectors. Classical and Quantum Gravity, 32(24), 245013. (doi: 10.1088/0264-9381/32/24/245013)
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Abstract
A viable technique for the preparation of highly thermal conductive joints between sapphire components in gravitational wave detectors is presented. The mechanical loss of such a joint was determined to be as low as 2 × 10−3 at 20 K and 2 × 10−2 at 300 K. The thermal noise performance of a typical joint is compared to the requirements of the Japanese gravitational wave detector, KAGRA. It is shown that using such an indium joint in the suspension system allows it to operate with low thermal noise. Additionally, results on the maximum amount of heat which can be extracted via indium joints are presented. It is found that sapphire parts, joined by means of indium, are able to remove the residual heat load in the mirrors of KAGRA.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Masso Reid, Ms Mariela and Nawrodt, Dr Ronny and Hammond, Professor Giles and Reid, Professor Stuart and Rowan, Professor Sheila and Hough, Professor James and Haughian, Dr Karen and Murray, Dr Peter |
| Authors: | Hofmann, G., Chen, D., Bergmann, G., Hammond, G. D., Hanke, M., Haughian, K., Heinert, D., Hough, J., Khalaidovski, A., Komma, J., Lück, H., Majorana, E., Masso Reid, M., Murray, P. G., Naticchioni, L., Nawrodt, R., Reid, S., Rowan, S., Schmidl, F., Schwarz, C., Seidel, P., Suzuki, T., Tomaru, T., Vine, D., and Yamamoto, K. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Research Centre: | College of Science and Engineering > School of Physics and Astronomy > Institute for Gravitational Research |
| Journal Name: | Classical and Quantum Gravity |
| Publisher: | Institute of Physics |
| ISSN: | 0264-9381 |
| ISSN (Online): | 1361-6382 |
| Copyright Holders: | Copyright © 2015 The Authors |
| First Published: | First published in Classical and Quantum Gravity 32(24):245013 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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