The quality factor of niobium flexure pendulums

Authors
Ju, L Blair, DG Taniwaki, M Andrew, R
Citation
L. Ju et al., The quality factor of niobium flexure pendulums, PHYS LETT A, 254(5), 1999, pp. 239-244
Citations number
13
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
03759601 → ACNP
Volume
254
Issue
5
Year of publication
1999
Pages
239 - 244
Database
ISI
SICI code
0375-9601(19990419)254:5<239:TQFONF>2.0.ZU;2-6
Abstract
The quality factor of niobium is shown to be dependent on both geometry and treatment, but is roughly independent of frequency. The e-factor is given by Q approximate to 10(7) (V/S)(1/2), where VIS is the volume to surface ra tio (in SI units). The geometry effects lead to a lower Q-factor than previ ously expected for test masses suspended by membrane flexures. (C) 1999 Els evier Science B.V.