Experimental study of cryogen spray properties for application in dermatologic laser surgery
Experimental study of cryogen spray properties for application in dermatologic laser surgery
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DOI：
10.1109/tbme.2003.813537
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发表时间：
2003-07-01
影响因子：
4.6
通讯作者：
Nelson, JS
中科院分区：
文献类型：
--
作者：
Aguilar, G;Majaron, B;Nelson, JS
Cryogenic sprays are used for cooling human skin during laser dermatologic surgery. In this paper, six straight-tube nozzles are characterized by photographs of cryogenic spray shapes, as well as measurements of average droplet diameter, velocity, and temperature. A single-droplet evaporation model to predict average spray droplet diameter and temperature is tested using the experimental data presented here. The results show two distinct spray patterns-sprays for 1.4-mm-diameter nozzles (wide nozzles) show significantly larger average droplet diameters and higher temperatures as a function of distance from the nozzle compared with those for 0.5-0.8-mm-diameter nozzles (narrow nozzles). These results complement and support previously reported studies, indicating that wide nozzles induce more efficient heat extraction than the narrow nozzles.
