| 摘要 |
Provided is a cyclotron capable of improving the efficiency of a beam. The cyclotron (1) according to the present invention includes a hollow yoke (3), a top pole (6) and a bottom pole (7) which are arranged in the yoke (3), an ion source (2) which generates ions, a buncher (8) in which at least a part is inserted into the yoke (3) and controls the density of an ion beam (R) emitted from the ion source (2) in a progressing direction, and an inflector (9) which deflects the ion beam (R) passing through the buncher (8) and inputs the ion beam (R) to a median plane (P). |
