| 摘要 |
PURPOSE: A circular accelerator is provided to reduce beam adjusting time by outputting beam with a simple control. CONSTITUTION: A circular accelerator comprises a deflection electromagnet, a 6 electromagnet, and an irradiating apparatus. The deflection electromagnet generates the deflection magnetic field. The 6 electromagnet generates the magnetic field to correct the difference of the betatron oscillation by the difference of the energy of the charged particle beam. The irradiating apparatus extracts the charged particle beam with the outside of the circular accelerator from the equilibrium orbit. The deflection electromagnet includes an endpack(34). The endpack prepares a first projection part(34a), and a second projection part(34b). The first projection part is formed in the diametric direction outer portion from the beam equilibrium orbit. The second projection is formed in the diametric direction of the endpack.
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