Charged particle irradiation apparatus and an operating method t

Details Charged particle irradiation apparatus and an operating method t Charged particle irradiation apparatus and an operating method t

1998-02-03

1999-11-16

Westin, Edward P.

Radiant energy

Irradiation of objects or material

Ion or electron beam irradiation

3504921, 35049221, 3505051, A61W 500, H01J 3300

Patent

active

059862742

ABSTRACT:
A charged particle irradiation apparatus, which is capable of decreasing a lateral dose falloff at boundaries of irradiation field of charged particle beam, and reducing the size of the charged particle irradiation apparatus, is provided by controlling magnetic fields of quadrupole electromagnets 1-5 and deflection electromagnets 6-8 so that center of the charged particle beam passes always center of a scatterer irrespective of direction and intensity of a magnetic field generated by scanning electromagnets 50, 60.

REFERENCES:
patent: 4870287 (1989-09-01), Cole et al.
patent: 5012111 (1991-04-01), Ueda
patent: 5440133 (1995-08-01), Moyers et al.

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