A magnetic apparatus includes a first conductive feature. The first conductive feature conducts a current. The first conductive feature directs an electron having an energy ranging from 50 to 250 MeV in response to a magnetic field generated by the current. The first conductive feature includes a first leg and a second leg. The first leg is integrated with the second leg. The second leg and the first leg define a first space, wherein the electron penetrates the first space and is redirected in the first space.一種磁性設備,其包括一第一導電部件。該第一導電部件傳導一電流。因應於該電流所產生的一磁場,該第一導電部件引導具有自50至250 MeV能量範圍的一電子。該第一導電部件包括一第一腳及一第二腳。該第一腳係與該第二腳整合。該第二腳與該第一腳界定一第一空間,其中該電子穿透該第一空間且在該第一空間中被重新引導。10‧‧‧磁性設備11‧‧‧第一導電部件/磁性結構/導電部件12‧‧‧第一腳14‧‧‧第二腳16‧‧‧第一本體18‧‧‧電子M1‧‧‧磁力方向M2‧‧‧磁力方向S1‧‧‧第一空間S2‧‧‧第二空間
