The present disclosures relates to an ion beam assembly where a relatively small deflection angle (approximately 15° from the center of the beam line) is used in conjunction with two beam dumps located on either side of the beam. In some embodiments, the combination of the two beam dumps and the magnet assembly can provide an ion beam filter. In some embodiments, the resulting system provides a smaller, safer and more reliable ion beam. In some embodiments, the ion beam can be a proton beam.

There is provided a circular accelerator that accelerates a beam of charged particles circulating in a magnetic field such that a closed orbit for each energy of the beam is eccentric. The circular accelerator includes a beam extraction port for extracting beams of different energies from the closed orbit, a first bending magnet and a second bending magnet that bend the beam extracted from the beam extraction port, and a control unit that controls magnetic field strengths of the first bending magnet and the second bending magnet in accordance with the energy of the extracted beam. When the energy of the extracted beam is a designed maximum energy of the circular accelerator, the control unit excites both the first bending magnet and the second bending magnet to bend the beam.

An accelerator 4 includes a circular vacuum container including circular return yokes 5A, 5B. An injection electrode 18 is disposed closer to an inlet of a beam extraction path 20 in the return yoke 5B than a central axis C of the vacuum container. Magnetic poles 7A to 7F are radially disposed from the injection electrode 18 at the periphery of the injection electrode 18 in the return yoke 5B. Recessions 29A to 29F are disposed alternately with the magnetic poles 7A to 7F in the circumferential direction of the return yoke 5B. In the vacuum container, a concentric trajectory region, in which multiple beam turning trajectories centered around the injection electrode 18 are present, is formed, and an eccentric trajectory region, in which multiple beam turning trajectories eccentric from the injection electrode 18 are present, is formed around the region.

Radioisotope production system includes an electrical field system and a magnetic field system that are configured to direct a particle beam of charged particles along a beam path within an acceleration chamber. The magnetic field system is energized by a drive current to generate a magnetic flux into the acceleration chamber for controlling the particle beam. The radioisotope production system also includes a target system configured to hold a target material and receive the particle beam. The radioisotope production system also includes a monitoring system that is configured to: (a) determine an operating parameter of the radioisotope production system as the particle beam is directed toward the target material and (b) change the drive current, thereby changing the magnetic flux, based on the operating parameter.

A method for detecting the position of the mass center of a passing-through beam of electric charges in a duct, having a passage section with a plurality of detection faces directed thereto is presented. The method includes: arranging couples of detecting elements, so that each couple detects a space area divided into two half-areas by an intermediate plane between the detecting elements of the respective couple; obtaining, from each detecting element, a signal thereby produced representing the distance thereof from the mass center to be detected; comparing the signals produced by each detecting element, by obtaining a digital signal showing the greater proximity of the mass center to one of the detecting element of the couple; and composing the digital signals produced by the couples of detecting elements, by identifying the cross-section of the beam of electric charges to which the mass center of the beam electric charges belongs.

A linear accelerator system comprising a source arranged to produce a pulsed beam of charged particles, a linear accelerator string arranged to accelerate the pulsed beam up to a predetermined range of energies, and a pre-acceleration stage interposed between the source and the linear accelerator string and arranged to accelerate the pulsed beam up to an energy suitable for beam insertion into the linear accelerator string and perform bunching of the pulsed beam. An average current detector is arranged to measure an average current in the pulsed beam, the average current detector comprising at least one non-interceptive sensor placed at an input side of the linear accelerator string, downstream of the pre-acceleration stage, the sensor being responsive to the pulsed beam passing thereby.

A linear accelerator system comprising a source arranged to produce a pulsed beam of charged particles, a linear accelerator string arranged to accelerate the pulsed beam up to a predetermined range of energies, and a pre-acceleration stage interposed between the source and the linear accelerator string and arranged to accelerate the pulsed beam up to an energy suitable for beam insertion into the linear accelerator string and perform bunching of the pulsed beam. An average current detector is arranged to measure an average current in the pulsed beam, the average current detector comprising at least one non-interceptive sensor placed at an input side of the linear accelerator string, downstream of the pre-acceleration stage, the sensor being responsive to the pulsed beam passing thereby.

A beam position monitor is provided, for measuring a position of a beam of charged particles passing through a chamber, the beam position monitor including a first magnetic field sensor and a second magnetic field sensor configured to be installed in the chamber on either side of the beam of charged particles, each magnetic field sensor including a conductive loop, the conductive loop of the first magnetic field sensor and the conductive loop of the second magnetic field sensor being configured to have inductances different from one another. A measurement system and a particle accelerator are also provided.

Embodiments of systems, devices, and methods relate to selecting a raster profile for scanning a proton beam across a target. A raster profile is selected from among the plurality of plurality of possible raster profiles based on a value of a figure of merit. A beam is directed across the target surface to form a pattern that is repeated one or more times at different radial orientations to form a scanning profile. A target temperature is monitored while scanning the beam across the target surface according to the scanning profile. The scanning parameters are changeable to avoid target damaging, to improve thermal performance and to optimize particle loading.

A time-of-fight measurement system for measuring energy of a pulsed hadron beam, wherein each pulse of the beam is structured into a series of bunches of charged particles, said bunches being repeated according to a repetition rate of the order of magnitude of radiofrequency. The system comprises a first detector, a second detector and a third detector arranged along a beam path, each of the detectors being configured to detect the passage of a bunch of charged particles and provide an output signal dependent on phase of the detected bunch, wherein the second detector is spaced apart from the first detector by a first distance and wherein the third detector is spaced apart from the second detector by a second distance, wherein the first distance is set out in such a way as that time of flight of the bunch from the first detector to the second detector is approximately equal to, or lower than a repetition period of the bunches, and wherein the second distance is set out in such a way as that time of flight of the bunch from the second detector to the third detector is greater than a multiple of the repetition period of the bunches, and a processing unit configured to a) calculate phase shifts between the output signals of the detectors, and b) calculate energy of the pulse based on the calculated phase shifts.