| 强激光辐照下生物组织的瞬态温度场研究 |
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| 引用本文： | 陈碧芳,刘天夫.强激光辐照下生物组织的瞬态温度场研究[J].四川激光,2006,27(3):63-64. |
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| 作者姓名： | 陈碧芳 刘天夫 |
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| 作者单位： | [1]嘉兴学院医学院,浙江嘉兴314001 [2]中国计量学院信息工程学院,浙江杭州310018 |
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| 摘 要： | 研究生物组织在强激光作用下的瞬态温度分布，探讨强激光作用下生物组织的热传输规律，采用数值方法中的有限差分法求解热传导方程，得出了生物组织纵切面上温度的时空分布图、生物组织轴向温度按指数规律降低及径向上温度按偶次方幂函数规律变化，根据纵切面上温度时空分布图估算出热损伤深度，当激光功率密度分别为175W／cm^2和298W／cm^2时，热损伤深度分别为0．28mm和0．24mm，其值与相关实验值较好地符合。
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| 关 键 词： | 高功率激光 生物组织 二维温度分布 热损伤 |
| 文章编号： | 0253-2743（2006）03-0063-02 |
| 收稿时间： | 2005-08-05 |
| 修稿时间： | 2005年8月5日 |
Research on instantaneous temperature distributions of biological tissue irradiated by high power laser |
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| CHEN Bi-fang,LIU Tian-fu.Research on instantaneous temperature distributions of biological tissue irradiated by high power laser[J].Laser Journal,2006,27(3):63-64. |
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| Authors: | CHEN Bi-fang LIU Tian-fu |
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| Affiliation: | 1. Department of Medicine Engineering Jiaxing University, Jiaxing,Zhejian 314001 China; 2. Department of Information Engineering, China Institute of Metrology, Hangzhou 310018 China |
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| Abstract: | The object of this study was to instantaneous temperature distributions of biological tissue irradiated by high power laser and the rule of heat transfer, thermal conduction equations were solved using difference methods, temperature distributions of biological tissue longitudinal section were obtained, the temperature in biological tissue decreases in exponent on axis and changes in parabola on radius were obtained, thermal injury depth were estimated, laser power density were 175 and 298W/cm^2,then thermal injury depth were 0.28 and 0.24mm, the estimation data were basically in agreement with the experiment data. |
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| Keywords: | high power laser biological tissue two- dimensional temperature distribution thermal injury |
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