【作者】 沈桂平； 谢树森； 李晖；

【Author】 Shen guiping1 Xie shusen2 Li hui2 1 School of Physics and Mechanical & Electrical Engineering, Xiamen University, Xiamen, 361005 2 School of Physics and OptoElectronics Technology, Fujian Normal University, Fuzhou, 350007

【机构】 厦门大学物理与机电工程学院； 福建师范大学物理与光电信息科技学院；

【摘要】 利用生物传热理论模型Pennes方程对Ar+激光辐照下生物组织的温度分布进行模拟研究;实验测定了离体猪鼻咽组织在Ar+激光(λ=488nm和514.5nm)辐照下不同位置的温度分布,重点研究了辐照功率密度和波长对组织中温度分布的影响。理论和实验结果表明:组织中的温度分布与组织不同深部位置、激光波长以及激光辐照功率密度有关;实验获得波长488nm和514.5nm的Ar+激光分别辐照鼻咽组织时安全光剂量分别为1.85W/cm2和1.72W/cm2。更多还原

【Abstract】 The temperature distribution in the nasopharynx tissue induced under the irradiation of rgon ion laser emitting at the wavelength of 488nm and 514.5nm were simulated by Pennes’ bioheat transfer equation. Furthermore, the dependence of measuring position, irradiation time and irradiation energy density, as well as wavelength on the temperature distribution was studied in detail. Simulation results and experimental results show that the temperature distributions in the porcine nasopharynx tissue were significantly affected by measuring position and the energy density and wavelength of irradiation laser. The safe dose of porcine nasopharynx tissue during the irradiation of argon ion laser at the wavelength of 488nm and 514.5nm is 1.85W/cm2 and 1.72 W/cm2 ,respectively.更多还原