Increased Brownian force noise from molecular impacts in a constrained volume

We report on residual-gas damping of the motion of a macroscopic test mass enclosed in a nearby housing in the molecular flow regime. The damping coefficient, and thus the associated thermal force noise, is found to increase significantly when the distance between the test mass and surrounding walls...

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Veröffentlicht in:	Physical review letters 2009-10, Vol.103 (14), p.140601-140601, Article 140601
Hauptverfasser:	Cavalleri, A, Ciani, G, Dolesi, R, Heptonstall, A, Hueller, M, Nicolodi, D, Rowan, S, Tombolato, D, Vitale, S, Wass, P J, Weber, W J
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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