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产生放射性核束的在线同位素分离装置的靶系统设计是整个装置产生效率的关键环节 .在ORNL的窄高斯分布的离子注入模型的基础上 ,研究了不同的靶的几何形状和尺寸、不同的温度条件、半衰期不同的放射性核素等对释放时间特性的影响 ,这对设计具有快速释放过程的靶系统 ,具有直接的实用价值 .基于德国ZFK关于表面物理的实验测量数据 ,用MonteCarlo统计的方法来模拟放射性核素从靶材料表面到在线离子源的电离室的传输过程 ,对大量的放射性核素 -传输管材料组合 ,和不同尺寸的传输管进行了统计计算 ,从这些统计计算中得到了可用于传输管工程设计的图表和经验公式 .
The design of the target system of the on-line isotope separation device that generates the radionuclide beam is the key to the efficiency of the whole device.On the basis of the narrow Gaussian distribution ion implantation model of ORNL, the geometry and size of different target, different temperature Conditions and half-lives of radionuclides on the release time characteristics of the target system designed to have a rapid release process has a direct practical value.Based on the German ZFK experimental data on surface physics measurements using MonteCarlo statistical methods The transmission of simulated radionuclides from the surface of the target material to the ionization chamber of the on-line ion source has been statistically calculated from a large number of radionuclide-transmission tube material combinations and transfer tubes of different sizes, from which available Graphs and empirical formulas for transmission pipe engineering design.