Title

Varying the Condensable Water Vapor Content in an Expansion Cloud Chamber

Abstract

We have investigated using a water and tetraethylene glycol mixture to reduce, substantially, the equilibrium vapor pressure of water in our expansion cloud chamber. The experiments were performed with a mixture that reduced the water vapor content to 2.5% relative humidity. They verify that the chamber with this mixture can be expanded to temperatures from -30° C to -40° C accompanied by water vapor pressures from below saturation to supersaturation ratios up to 1.6. The experiments indicate that the very low concentration of tetraethylene glycol in the vapor does not influence the water nucleation process.

Department(s)

Physics

Keywords and Phrases

Cloud Chamber; Condensation; Water Vapour Content

International Standard Serial Number (ISSN)

0169-8095

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1994 Elsevier BV, All rights reserved.

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