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A Dual Diffusion Chamber for Observing Ice Crystal Growth on c-Axis Ice Needles

Libbrecht, Kenneth G. (2014) A Dual Diffusion Chamber for Observing Ice Crystal Growth on c-Axis Ice Needles. , Pasadena, CA. (Submitted) http://resolver.caltech.edu/CaltechAUTHORS:20140519-102124085

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Abstract

We describe a dual diffusion chamber for observing ice crystal growth from water vapor in air as a function of temperature and supersaturation. In the first diffusion chamber, thin c-axis ice needles with tip radii ~100 nm are grown to lengths of ~2 mm. The needle crystals are then transported to a second diffusion chamber where the temperature and supersaturation can be independently controlled. By creating a linear temperature gradient in the second chamber, convection currents are suppressed and the supersaturation can be modeled with high accuracy. The c-axis needle crystals provide a unique starting geometry compared with other experiments, and the dual diffusion chamber allows rapid quantitative observations of ice growth behavior over a wide range of environmental conditions.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/1405.1384arXivDiscussion Paper
Record Number:CaltechAUTHORS:20140519-102124085
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140519-102124085
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45818
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:20 May 2014 03:04
Last Modified:20 May 2014 03:04

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