A light source for high power coherent light can include multiparticle relativistic bunches of electrons generating high intensity propagating fields. Coherent emission between electrons may also be utilized. The source may be independent of any medium or media to remove all constraints on the wavelength of the light emitted. And at least a portion of a single alternating magnetic field for accelerating the electron bunches can be included. The color or wavelength of the produced light can be determined solely by the parameters of the electron bunches and the alternating field. The source can be used for imaging, such as medical imaging or for security, including concealed weapons, and for quality control.

A light source for high power coherent light can include multiparticle relativistic bunches of electrons generating high intensity propagating fields. Coherent emission between electrons may also be utilized. The source may be independent of any medium or media to remove all constraints on the wavelength of the light emitted. And at least a portion of a single alternating magnetic field for accelerating the electron bunches can be included. The color or wavelength of the produced light can be determined solely by the parameters of the electron bunches and the alternating field. The source can be used for imaging, such as medical imaging or for security, including concealed weapons, and for quality control.

An irradiation control device which controls irradiation of charged particles to a target that includes a substance that generates neutrons by being irradiated with a charged particle beam, includes: a deflector that deflects the charged particles; and a controller that controls the deflector such that a plurality of peaks of heat density formed by the beam are formed between a center of an irradiation surface of the target and an end portion of the irradiation surface by moving the beam of the charged particles on the irradiation surface.

A particle beam apparatus includes: an electromagnet to which each ion beam from a plurality of ion sources having different ion species is capable of being introduced, and from which one of the ion beams is capable of selectively exiting to a device on a downstream side by switching a magnetic field intensity, in which the electromagnet is capable of deflecting the one of the ion beam to be exited to the device on the downstream side toward the device on the downstream side, and is capable of reducing exit of a different type of beam mixed in the ion beam to the device on the downstream side, the different type of beam being different from the one of the ion beam.

A particle beam apparatus includes: an electromagnet to which each ion beam from a plurality of ion sources having different ion species is capable of being introduced, and from which one of the ion beams is capable of selectively exiting to a device on a downstream side by switching a magnetic field intensity, in which the electromagnet is capable of deflecting the one of the ion beam to be exited to the device on the downstream side toward the device on the downstream side, and is capable of reducing exit of a different type of beam mixed in the ion beam to the device on the downstream side, the different type of beam being different from the one of the ion beam.

High propellant throughput Hall-effect thrusters (HETs) and components thereof are disclosed. A compact and high propellant throughput HET has an improved magnetic circuit that mostly shields the discharge chamber walls from high-energy ionized propellant, low-profile sacrificial pole covers to delay magnetic pole erosion, a unique discharge chamber subassembly, a mechanically crimped cathode emitter retainer to increase efficiency, a center-mounted hollow cathode, or a combination thereof. Such feature(s) may balance propellant throughput and thruster performance, minimize the volume of the thruster envelope, and/or simplify the thruster assembly.

High propellant throughput Hall-effect thrusters (HETs) and components thereof are disclosed. A compact and high propellant throughput HET has an improved magnetic circuit that mostly shields the discharge chamber walls from high-energy ionized propellant, low-profile sacrificial pole covers to delay magnetic pole erosion, a unique discharge chamber subassembly, a mechanically crimped cathode emitter retainer to increase efficiency, a center-mounted hollow cathode, or a combination thereof. Such feature(s) may balance propellant throughput and thruster performance, minimize the volume of the thruster envelope, and/or simplify the thruster assembly.

A proton treatment system including a proton accelerator structured to generate a proton beam, a beamline pathway configured to direct the proton beam from the proton accelerator to at least one treatment room, a magnet assembly, including superconducting magnets, located in the beamline pathway and configured to transport the proton beam away from the accelerator into the at least one treatment room, an achromat, configured as an achromatic superconducting magnet assembly, that bends the proton beam away from the proton accelerator toward the at least one treatment room, and a collimator provided inside the achromat and configured to select the proton beam with desired energy levels.

A proton treatment system including a proton accelerator structured to generate a proton beam, a beamline pathway configured to direct the proton beam from the proton accelerator to at least one treatment room, a magnet assembly, including superconducting magnets, located in the beamline pathway and configured to transport the proton beam away from the accelerator into the at least one treatment room, an achromat, configured as an achromatic superconducting magnet assembly, that bends the proton beam away from the proton accelerator toward the at least one treatment room, and a collimator provided inside the achromat and configured to select the proton beam with desired energy levels.

The present disclosure provides a radiation therapy device and a magnetic resonance guided radiation therapy system. The radiation therapy device may include an electron gun and a curved beam deflection unit. The beam deflection unit may be configured to accelerate an electron beam emitted from the electron gun within a magnetic field. The magnetic resonance guided radiation therapy system may include a radiation therapy device and a magnetic resonance imaging (MRI) device.