Dose Variation Analysis and Position Correction Method for Carbon-ion Pencil Beams under Uniform Magnetic Fields

摘要

In carbon-ion radiotherapy,Bragg peak is required to be accurately irradiated into the tumor tissue.During the treatment,the position of the tumor may change with the patient''s involuntary activities such as breathing movement[1],so it is necessary to obtain the anatomical image of the patient in real-time during the treatment.