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Modified MEE Industries static thermal gradient diffusion cloud chamberThe experiments performed at the Workshop were undertaken to confirm the calculated sample volume, determine the usable range of supersaturation, and minimum detectable size. Comparison of absolute CCN concentrations with other state-of-the-art continuous flow diffusion chambers at supersaturations near 1 percent indicated that the volume used produced CCN concentrations well within the range of CCN concentrations determined at the workshop. This agreement is interpreted to mean the sample volume was correct. Direct measurements of the beam geometry done in the laboratory indicated a factor of 4-5 error. This error is apparently due to the larger apparent visible beam diameter versus the actual usable beam diameter given the droplet illumination, chamber optical geometry, microscope optics and film characteristics.
Document ID
19820007523
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Borys, R. D.
(Colorado State Univ. Fort Collins, CO, United States)
Date Acquired
August 10, 2013
Publication Date
November 1, 1981
Publication Information
Publication: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop
Subject Category
Instrumentation And Photography
Accession Number
82N15396
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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