Abstract: The embodiments of the present disclosure relate to a method and system for controlling the extraction of ion beam pulses produced by a synchrocyclotron. The synchrocyclotron comprises electrodes configured to be placed in a magnetic field. An alternating voltage is applied between the electrodes, and the frequency of the alternating voltage is modulated in a cyclic manner. In other embodiments, the method further comprises the steps of starting an acceleration cycle of the synchrocyclotron, generating a reference signal when the modulated frequency reaches a predefined value, communicating the time, at which the reference signal is generated, to the beam control elements, assessing one or more status parameters of the one or more beam control elements, and cancelling or proceeding with the extraction of the beam pulse depending on the results of the assessment.

Abstract: The present disclosure relates to a medical apparatus including a magnetic resonance imaging (MRI) system for acquiring magnetic resonance (MR) data from an imaging volume. In one implementation, the MRI system may include a particle beam apparatus having a particle beam line for producing, directing and managing a particle beam of charged particles, a magnetic correction device for applying a magnetic correction to a magnetic field perturbation within the imaging volume, and a controller for controlling the magnetic correction device. The controller may be configured to provide a spatially optimized magnetic correction within a restricted volume of the imaging volume during a spatially optimized magnetic correction period posterior to an excitation period during which a selected slice from the imaging volume is excited.

Abstract: The present disclosure relates to a method and a medical apparatus for visualizing a hadron beam traversing an organic body. In one implementation, the method may include capturing a magnetic resonance (MR) image including a volume of irradiated excitable atoms surrounding a hadron beam and having a magnetic susceptibility modified by the hadron beam captured as a hyposignal. For example, a hyposignal may be obtained by saturating the spins of the irradiated excitable atoms before capturing an MR image based on excitation of excitable atoms not affected by the hadron beam.

Abstract: The present disclosure relates to a method and a medical apparatus for visualizing on magnetic resonance (MR) images a hadron beam path traversing an organic body. The present method may utilize artefacts in MR image acquisition provoked by the changes in properties of excitable atoms when irradiated by a hadron beam. By synchronizing the hadron pulses with different steps of MR data acquisition, it is possible to identify such artefacts and determine, based on their positions, the hadron beam path and the corresponding position of the Bragg peak.

Abstract: The embodiments of the present disclosure relate to a method and system for controlling the extraction of ion beam pulses produced by a synchrocyclotron. The synchrocyclotron comprises electrodes configured to be placed in a magnetic field. An alternating voltage is applied between the electrodes, and the frequency of the alternating voltage is modulated in a cyclic manner. In other embodiments, the method further comprises the steps of starting an acceleration cycle of the synchrocyclotron, generating a reference signal when the modulated frequency reaches a predefined value, communicating the time, at which the reference signal is generated, to the beam control elements, assessing one or more status parameters of the one or more beam control elements, and cancelling or proceeding with the extraction of the beam pulse depending on the results of the assessment.