Particle therapy system

Details Particle therapy system Particle therapy system

2005-08-30

2005-08-30

Wells, Nikita (Department: 2881)

Radiant energy

Radiation controlling means

C250S492300, C315S503000, C315S507000, C378S065000

Reexamination Certificate

active

06936832

ABSTRACT:
A particle therapy system is provided which can simply and quickly correct a beam orbit. In a particle therapy system provided with an irradiation facility comprising a first beam transport system for receiving a beam and transporting the beam to the patient side, and an irradiation nozzle for forming an irradiation field of the beam, the particle therapy system comprises first beam position monitors for detecting a position upstream of the irradiation nozzle at which the beam passes, second beam position monitors for detecting a position downstream of the irradiation nozzle at which the charged-particle beam passes, and first and second steering magnets. Correction bending amounts for causing the beam to be coincident with a predetermined orbit after the correction are determined in accordance with detected results from the first and second beam position monitors, and first and second steering magnets are excited under control so that the determined correction bending amounts are obtained.

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