Development of analysis method for ultra micro chemical species using by ion trap.

研制了一种可用于放射性同位素的射频离子阱，将放射性同位素捕获在离子阱池和分析装置中，使放射性测量与飞行时间质量分析相结合。它的目的是为了研究放射性同位素的陷阱。采用圆柱形电池作为离子阱，以氩气作为离子源引入气体，使其发挥射频离子阱的作用，从而获得离子。基础研究发现，注入Ar和N_2气体。正如开始所预料的那样，圆柱形电池作为离子阱的寿命很短，约为6周。通过对离子阱效率的考察，得出了离子阱效率约为10^<-3>。此外，只有约10^<-5>的效率显示了热离子源从细胞外部引入电离。在电离和导入细胞非常困难之前，还没有一个真正的实验用放射性同位素从这些结果中得出。系统的发展要求离子阱只引入目的材料（放射性同位素），不引入载气和电离。

The work makes RF ion trap which can be used for a radioactive isotope, the radioisotope is traped in ion trap cell and the analysis device to combine the radioactive measurement and the time of flight mass analysis. It began with the purpose of doing research about trap of the radioactive isotope. It got an ion by using cell of the cylinder shape type as ion trap and introducing gas with the heat ion source which firament was used as for the ion source which made it work as RF ion trap. The foundation research was found to insert Ar and N_2 gas. As the beginning was expected, the life as ion trap of cylinder shape cell was short with about 6 musec. The trap efficiency became about 10^<-3> from the examination of the efficiency about ion trap. Besides, only the efficiency of about 10^<-5> showed the introduction of the ion from the outside of cell about ionization with the heat thermal ion source. Before it was very difficult that there are ionization and introduction to cell, it was not reached an actually experiment with a especially radioactive isotope from these results. The development of system wants that the ion trap cell is only introduced the purpose material (the radioisotope) without the carrier gas and an ionization.