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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)

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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)
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URLURL TypeDescription Paper
Libbrecht, Kenneth G.0000-0002-8744-3298
Record Number:CaltechAUTHORS:20140519-102124085
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45818
Deposited By: Tony Diaz
Deposited On:20 May 2014 03:04
Last Modified:26 Nov 2019 11:15

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