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

fYear

2014

fDate

29-30 May 2014

Firstpage

479

Lastpage

483

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Metrology for Aerospace (MetroAeroSpace), 2014 IEEE

Conference_Location

Benevento

Type

conf

DOI

10.1109/MetroAeroSpace.2014.6865972

Filename

6865972