Development of a Microbeam Cell Irradiation System Using Micro Glass Tubes

本文对锥形玻璃毛细管聚焦MeV离子进行了实验和数值模拟，首次揭示了入射离子在毛细管内壁上的小角散射是聚焦现象的主要物理过程。虽然这种聚焦方法得到的微束由两个发散角不同的分量组成，但它们的质量对于微束分析(如二维元素映射)是令人满意的。

This study performed experiments and numerical simulations on MeV ion focusing by tapered glass capillaries and revealed at the first time that small-angle scattering of incident ions on the capillary inner wall is the predominant physical process of this focusing phenomena. Although the microbeams obtained by this focusing method consists of two components having different divergence angles, their qualities were found to be satisfactory for microbeam analyses such as a two-dimensional element mapping.