5 results about "Synchrocyclotron" patented technology

The invention discloses an ion source automatic beam adjusting method, a radiotherapy system and related equipment, and relates to the technical field of radiotherapy, and the method comprises the steps: monitoring and adjusting a plurality of control parameters in real time, and obtaining an optimal control parameter combination; under the optimal control parameter combination, the variable quantity of each control parameter before and after adjustment and the performance change of the proton beam are obtained; performing a pulse width charge test according to the variation of each parameter before and after adjustment and the performance change of the proton beam; obtaining an optimal adjustment parameter and an adjustment amount through a pulse width charge test result; and through the optimal adjustment parameter and adjustment amount, automatic beam adjustment is realized, stable and efficient acceleration of the proton beam in the synchrocyclotron system is realized, and the stability and consistency of the proton beam are ensured.

An example particle therapy system can include a synchrocyclotron to generate a particle beam, a scanner to move the particle beam in one or more dimensions relative to an irradiation target, and an energy degrader between the scanner and the irradiation target. The energy degrader can include a plurality of plates that are movable relative to a path of the particle beam and each controllable to move in the path of the particle beam and during movement of the particle beam. An aperture can be between the energy degrader and the irradiation target. The aperture can trim the particle beam before the particle beam reaches the irradiation target.

An example particle accelerator includes a particle source to provide particles to a magnetic cavity; circuitry to provide a radio frequency (RF) voltage to the magnetic cavity to accelerate particles from the ionized plasma in orbits in the magnetic cavity, where the RF voltage has a slope that is less when the particles are injected into the magnetic cavity than when the particles are accelerated in the magnetic cavity; and an extraction channel to receive the particles from the magnetic cavity for output as a particle beam from the particle accelerator.

The present invention relates to the technical field of radiotherapy. Disclosed are a radio frequency signal control apparatus and method, and a related device. The apparatus comprises: a main control module, configured to execute radio frequency signal control logic; a sampling module, configured to collect, in real time, a signal of a radio frequency cavity, and incident power and reflected power on a directional coupler, and feed same back to the main control module, wherein the signal of the radio frequency cavity comprises Dee power; a phase detection module, configured to detect, in real time, a phase error between the incident power and the Dee power, and generate an oscillation driving signal upon phase matching; an amplification module, configured to amplify the oscillation driving signal; and a substrate signal generation module, configured to generate a radio frequency substrate signal on the basis of the received oscillation driving signal. Thus, closed-loop control of a radio frequency signal of a synchrocyclotron is achieved, and stable and efficient acceleration of proton beams in a synchrocyclotron system is achieved.

Superconducting synchrocyclotron (1) comprising: At least two ion sources (30, 33) to produce respectively a so-called "therapy" beam and an "imaging" beam, an axial injection line, a high-frequency modulation device (23) to produce within the synchrocyclotron a cyclic frequency law F(t) allowing the simultaneous acceleration of the ions of the therapy and imaging beams, a rotating path modulator (110), two beam-cutting devices (34, 35) upstream of the median acceleration plane to modulate the therapy and imaging beams synchronously with the rotation of the path modulator (110). Figure for the abstract: Fig. 5