Title :
Mechanical loss characterization at cryogenic temperature of a tungsten wire: An automated measurement system
Author :
Chen, D. ; Daponte, P. ; Grimaldi, D. ; Hofmann, Gerhard ; Komma, Julius ; Lamonaca, F. ; Nastro, A. ; Nawrodt, Ronny ; Picariello, Francesco ; Polimeni, Giuseppe ; Riccio, M. ; Schwarz, Christian ; Yamamoto, Koji
Author_Institution :
Inst. for Cosmic Ray Res. (ICRR), Univ. of Tokyo, Tokyo, Japan
Abstract :
The paper describes an automated measurement system for mechanical loss characterization of wires at cryogenic temperature. The important role of these measurements for the design of the Kamioka Gravitational Wave Detector (KAGRA) is highlighted. The experimental setup used to perform the measurements are presented and discussed. Furthermore, preliminary results obtained for a tungsten wire in term of quality factor are reported.
Keywords :
cryogenics; gravitational wave detectors; loss measurement; mechanical variables measurement; tungsten; wires; KAGRA; Kamioka Gravitational Wave Detector; W; automated measurement system; cryogenic temperature; mechanical loss characterization; quality factor; tungsten wire; Cryogenics; Loss measurement; Mechanical variables measurement; Q-factor; Resonant frequency; Wires; automatic measurement system; cryogenics; gravitational wave detector; mechanical loss; thermal noise;
Conference_Titel :
Metrology for Aerospace (MetroAeroSpace), 2014 IEEE
Conference_Location :
Benevento
DOI :
10.1109/MetroAeroSpace.2014.6865972
