Disclosed is a beam energy dispersion adjusting mechanism for superconducting proton cyclotron. The adjusting mechanism includes a vacuum cavity, bases are symmetrically mounted on outer walls of four faces of the vacuum cavity in horizontal and vertical directions, an electric cylinder and a transmission mechanism are mounted on each of the four bases, a jaws block and a position fixing plate are correspondingly provided on an inner wall of the vacuum cavity at each face. The transmission mechanism includes an oil-free sleeve, a moving connecting rod onto which the position fixing plate is fixed, a corrugated pipe, and an electric cylinder connecting block whose both ends are screwed with the moving connecting rod and the electric cylinder, the jaws block is fixedly connected with the position fixing plate. The disclosure utilizes the electric cylinder to drive the jaws block to complete specified linear displacement, and satisfies back-end beam quality requirements.

A movable gantry for delivery of a particle beam using beam scanning technique contains an inlet section for an accelerated particle beam having quadrupole magnets, first and second bending sections having dipole and quadrupole magnets for beam correction, a transfer section having quadrupole magnets for beam correction and a degrader and a last beam bending section having separate and/or combined dipole/quadrupole/higher order multipole magnets forming an achromatic section. All the magnets of the achromatic last bending section are located downstream of the degrader. Any dispersion in this achromatic last bending section is suppressed. A scanning section having two separate or one combined fast deflection magnets that deflect the beam at the iso-center in a direction perpendicular to the beam direction to perform lateral scanning is provided. A beam nozzle section is provided and has a beam nozzle.

An example particle therapy system includes the following: a gantry that is rotatable relative to a patient position; a particle accelerator mounted to the gantry, where the particle accelerator is for outputting a particle beam essentially directly to the patient position; and a control system to receive a prescription and to generate machine instructions for configuring one or more operational characteristics of the particle therapy system. At least one of the operational characteristics relates to a rotational angle of the gantry relative to the patient position.

Disclosed herein is a portable information terminal performing operation of a first operation item at a desired position. The portable information terminal is separated from a charged particle beam irradiation apparatus performing processing of a sample by irradiating the sample with a charged particle beam, and includes a display controller causing a display unit to display an image containing a graphical user interface (GUI) capable of operating a first operation item based on operation by a user, the first operation item being one or more operation items among a plurality of items operable in the charged particle beam irradiation apparatus.

A neutron beam source generator is provided, which includes an accelerator connecting to a beryllium target through a channel, a filter and a collimator. The beryllium target is disposed at an end of the channel and adjacent to the filter. The filter is disposed between the beryllium target and the collimator. The channel and the beryllium target have an angle therebetween, and the angle is between 0 and 90. The channel and the direction normal to the surface of the filter have an angle therebetween, and the angle is between 0 and 90. The cross-section of the channel is not circular.

A particle therapy system includes a particle accelerator to output a particle beam; and a scanning system for the particle accelerator to scan the particle beam across at least part of an irradiation target. The scanning system is configured to scan the particle beam in two dimensions that are at an angle relative to a direction of the particle beam. A structure defines an edge. The structure is controllable to move in the two dimensions relative to the irradiation target such that at least part of the structure is between at least part of the particle beam and the irradiation target. The structure includes a material that inhibits transmission of the particle beam.

A hadron therapy system that provides 3D scanning and rapid delivery of a high dose. Such systems can include a hadron source and accelerator with an RF energy modulator and an RF deflector that operate in combination to provide 3D scanning of a targeted tissue. The systems can include a permanent magnet quadrupole for magnification of the beam. The systems can include high energy hadron sources that utilize a multi-cell, multi-klystron design that achieves scanning of high energy hadron beams, for example a fixed energy of 200 MeV protons. Such systems can provide full irradiation of a liter scale tumor within one second or less.

A structure configuring a ridge filter has line symmetry about a line vertical to a depth direction passing the center of the structure. A small structure obtained in such a way that the structure is divided by this line has a bilaterally asymmetric shape about a center line in an iterative direction, and has a point symmetric shape about an intersection between the center line in the iterative direction and the center line in the depth direction. Thicknesses in the iterative direction of an uppermost stream surface and a lowermost stream surface in the depth direction are equal to each other. The structure is configured so that a thick portion in the iterative direction of the uppermost stream surface and the lowermost stream surface is not present in the depth direction.

An example particle therapy system includes: a particle accelerator to output a beam of charged particles; and a scanning system to scan the beam across at least part of an irradiation target. An example scanning system includes: a scanning magnet to move the beam during scanning; and a control system (i) to control the scanning magnet to produce uninterrupted movement of the beam over at least part of a depth-wise layer of the irradiation target so as to deliver doses of charged particles to the irradiation target; and (ii) to determine, in synchronism with delivery of a dose, information identifying the dose actually delivered at different positions along the depth-wise layer.

An example system includes: a magnet including one or more coils to conduct current to generate a magnetic field, with the magnetic field to affect output of radiation to a target; and one or more actuators, with an actuator among the one or more actuators being at least part of a physical coupling to the one or more coils, and with the actuator being controllable to move the one or more coils via the physical coupling based on movement of the magnet.