| 摘要 |
There is provided a cyclotron capable of improving the beam efficiency. A cyclotron 1 of the present invention includes: a hollow yoke 3; first and second poles 6 and 7 disposed in the yoke 3; an ion source 2 that generates an ion; a buncher 8 of which at least a part enters the yoke 3 and which adjusts the density of an ion beam R, which is emitted from the ion source 2, in a traveling direction; and an inflector 9 that deflects the ion beam R having passed through the buncher 8 to make the ion beam R incident on a median plane M. |
