The present relates to a device for providing a radiation treatment to a patient comprising:—an electron source for providing a beam of electrons, and—a linear accelerator for accelerating said beam until a predetermined energy, and—a beam delivery module for delivering the accelerated beam from said linear accelerator toward the patient to treat a target volume with a radiation dose, The device further comprises intensity modulation means configured to modulate the distribution of the radiation dose in the target volume according to a predetermined pattern. The pattern is determined to match the dimensions of a target volume of at least about 50 cm.sup.3, and/or a target volume located at least about 5 cm deep in the tissue of the patient with said radiation dose, The radiation dose distributed is up to about 20 Gy delivered during an overall treatment time less than about 50 ms.

A linac-based X-ray system for cargo scanning and imaging applications uses linac design, RF power control, beam current control, and beam current pulse duration control to provide stable sequences of pulses having different energy levels or different dose.

A linac-based X-ray system for cargo scanning and imaging applications uses linac design, RF power control, beam current control, and beam current pulse duration control to provide stable sequences of pulses having different energy levels or different doses.

Technology is described for an electron gun driver including a half bridge driver circuit and a drive controller. The half bridge driver circuit includes a drive circuit configured to generate a grid drive voltage for a grid connection of an electron gun, and a cutoff circuit configured to generate a grid cutoff voltage for the grid connection of the electron gun, and a gate driver configured to switch between the grid drive voltage and the grid cutoff voltage. The drive controller is configured to generate a pulse input to the drive circuit and cutoff circuit and grid switching signals for the gate driver.

A linac-based X-ray system for cargo scanning and imaging applications uses linac design, RF power control, beam current control, and beam current pulse duration control to provide stable sequences of pulses having different energy levels or different doses.

A device and method for generating pulses to activate and deactivate a kicker magnet is provided. When the kicker magnet is deactivated the circuit generates and stores a magnetic field in an inductor. When the kicker magnet is activated, the circuit changes configuration so that the magnetic field and current stored in the inductor can provide the necessary current to activate the kicker magnet is a minimal amount of time. The configuration of the circuit changes via the use of switches. The switches can employ Zener diodes arranged so as to provide protection against high voltage events and rogue neutrinos that may bombard the switches when the kicker magnet is used in the context of deflecting a particle beam.

For the purpose of providing a transportable linear accelerator system which can restrain entering of losing ion beams deviated from a trajectory therefor, to thereby efficiently achieve reduction in radioactivity at low cost, and a transportable neutron source equipped therewith, a transportable linear accelerator system is configured to be provided with a beam chopper just before an inlet of a post-accelerator, thereby to cut off, from the proton beams pre-accelerated by a pre-accelerator, uncontrolled proton beams, and thus to radiate only the controlled proton beams to the post-accelerator, so that the proton beams are prevented from hitting an acceleration electrode, etc. of the post accelerator.

Disclosed embodiments include an electron accelerator, having a resonant cavity having an outer conductor and an inner conductor; an electron source configured to generate and to inject a beam of electrons transversally into the resonant cavity; a radio frequency (RF) source coupled to the resonant cavity and configured to: energize the resonant cavity with an RF power at a nominal RF frequency, and generate an electric field into said resonant cavity that accelerates the electrons of the electron beam a plurality of times into the cavity and according to successive and different transversal trajectories; and at least one deflecting magnet configured to bend back the electron beam that emerges out of the cavity and to redirect the electron beam towards the cavity.

A linac-based X-ray system for cargo scanning and imaging applications uses linac design, RF power control, beam current control, and beam current pulse duration control to provide stable sequences of pulses having different energy levels or different doses.

There is provided a particle accelerator comprising a waveguide for accelerating electrons along an acceleration path and a magnetron configured to supply a radiofrequency electromagnetic field to the waveguide. An oscilloscope is connected to the magnetron and configured to provide signals indicative of the magnetron output. A processor is configured to receive signals from the oscilloscope and to send data to a central server.