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Method and Apparatus for Controlled Pencil Beam Therapy
Method and Apparatus for Controlled Pencil Beam Therapy
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机译:笔杆束治疗的方法和装置
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摘要
A control system for providing a closed loop, real time control of a charged particle pencil beam is disclosed. The system includes a first detector apparatus, a second detector apparatus, a first orthogonal magnetic deflector apparatus, a second orthogonal magnetic deflector apparatus, and a controller. The controller compares the measured position and beam angle of the beam with a model position and beam angle of a model beam to determine an offset error and a beam angle error. The first orthogonal magnetic deflector apparatus includes a pair of electromagnets to correct a first component of the offset and beam angle errors. The second orthogonal magnetic deflector apparatus includes a pair of electromagnets to correct a second component of the offset and beam angle errors. The beam can be iteratively adjusted during patient therapy or short pauses in patient therapy.
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