PARTICLE BEAM THERAPY DEVICE

摘要

A device controller controls an acceleration-related devices and an extraction-related devices of an accelerator for accelerating and extracting a particle beam, in such a way that the controller checks, at a time point when receiving a master clock pulse, that preparation for operating the acceleration-related devices is completed and then commands the acceleration-related devices to operate in accordance with an operation pattern corresponding to a prescribed energy of the particle beam, and commands the acceleration-related devices to operate in accordance with an extracting operation pattern when an extraction enable signal indicating that the particle beam reaches the prescribed energy is turned ON and an extraction-related device setting-status signal indicating that completion of setting the extraction-related devices for the prescribed energy is ON.

主权项

1. A particle beam therapy system comprising:
an accelerator including
acceleration-related devices operating in accordance with a continuous operation pattern from an accelerating operation to a decelerating operation in an operation cycle for accelerating an injected particle beam to a prescribed energy while orbiting the particle beam along an orbital path; andextraction-related devices deviating the particle beam having the prescribed energy to an extraction path and then extracting the particle beam while the acceleration-related devices are performing an extracting operation, a device controller controlling each of the acceleration-related devices and each of the extraction-related devices; a master clock generator generating a master clock pulse to determine a timing for starting the operation of the accelerator; a beam delivery line delivering the particle beam extracted from the accelerator; and a particle beam irradiation apparatus irradiating an irradiation target with the particle beam delivered through the beam delivery line, the particle beam irradiation apparatus including
a dose monitor measuring an irradiation dose imparted to the irradiation target, wherein the device controller checks that preparation for operating the acceleration-related devices is completed at a time point when receiving the master clock pulse, and commands the acceleration-related devices to operate in accordance with the operation pattern corresponding to the prescribed energy and then commands the acceleration-related devices to perform the extracting operation when an extraction enable signal indicating that the particle beam reaches the prescribed energy is turned ON and when an extraction-related device setting-status signal indicating that setting of the extraction-related devices completes for the prescribed energy is ON.