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Proceedings Paper

Thermal and fluid characteristics during cryogen spray cooling
Author(s): Bahman Anvari; Brian M. Pikkula; James William Tunnell; Jorge H. Torres
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Paper Abstract

Cryogen spray cooling (CSC) is a technique to protect the epidermis from non-specific thermal injury during laser treatment of various dermatoses. Successful application of CSC in conjunction with laser treatment of heavily pigmented individuals, and high radiant exposures which may be required for effective therapeutic outcomes, requires enhancement of heat removal. We have investigated the thermal mechanisms, and effects of droplet size, density and velocity on heat removal during CSC. Our results suggest that although the inherent thermal diffusivity of skin may be a limiting factor in heat removal, parameters such as droplet size, density, and velocity are important, and should be optimized for maximum heat removal.

Paper Details

Date Published: 21 May 2001
PDF: 8 pages
Proc. SPIE 4244, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XI, (21 May 2001); doi: 10.1117/12.427766
Show Author Affiliations
Bahman Anvari, Rice Univ. (United States)
Brian M. Pikkula, Rice Univ. (United States)
James William Tunnell, Rice Univ. (United States)
Jorge H. Torres, Rice Univ. (United States)


Published in SPIE Proceedings Vol. 4244:
Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XI
Lawrence S. Bass; Abraham Katzir; David S. Robinson; Hans-Dieter Reidenbach; Eugene A. Trowers; Timothy A. Woodward; Kenton W. Gregory; Lou Reinisch; C. Gaelyn Garrett; Kenneth Eugene Bartels; Lloyd P. Tate; George M. Peavy; Michael D. Lucroy; R. Rox Anderson; Kenneth Eugene Bartels; Lawrence S. Bass; C. Gaelyn Garrett; Kenton W. Gregory; Abraham Katzir; Nikiforos Kollias; Michael D. Lucroy; Reza S. Malek; J. Stuart Nelson; George M. Peavy; Hans-Dieter Reidenbach; Lou Reinisch; David S. Robinson; Lloyd P. Tate; Eugene A. Trowers; Timothy A. Woodward; Reza S. Malek, Editor(s)

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