| 摘要 |
PROBLEM TO BE SOLVED: To form an efficient effective magnetic field region corresponding to charged particle beam width and to accurately set an edge angle as occasion demands by changing stacking structure of electromagnetic steel plates. SOLUTION: This deflecting electromagnet sets an edge angleαby inclining electromagnetic steel plates 2a, 2b in charged particle beam outlet and inlet 6A, 6B of an electromagnet main body 1 by a specified angle to the perpendicularly crossing surface with the beam axis of a charged particle beam 7, other electromagnetic steel plates are stacked so as to match with a designed orbit 8 through which the charged particle beam is passed by shifting one by one in parallel to the electromagnetic steel plates 2A, 2B in the charged particle beam outlet and inlet 6A, 6B, and thereby, magnetic pole width H is made wider in the central part of the designed orbit 8 than the charged particle beam outlet and inlet 6A, 6B sides.
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