A linear proton accelerator includes a plurality of accelerator components arranged after one another, and a proton source and a plurality of accelerating units. The accelerator further includes a reticular support structure for supporting the accelerator components. The support structure is shaped as a prism with a polygonal cross-section, and has a plurality of side faces joining opposite ends of the prism. The support structure is arranged concentrically with respect to the accelerator components.

The invention, which relates to a miniaturizable plasma thruster, consists of: igniting the plasma by microhollow cathode discharge close to the outlet and inside the means for injecting the propellant gas, said injection means being magnetic and comprising a tip at the downstream end thereof; bringing the electrons of the magnetized plasma into gyromagnetic rotation, at the outlet end of said injection means; sustaining the plasma by means of Electron Cyclotron Resonance (ECR), said injection means being metal and being used as an antenna for electromagnetic (EM) emission, the volume of ECR plasma at the outlet of said injection means being used as a resonant cavity of the EM wave; accelerating the plasma in a magnetic nozzle by diamagnetic force, the ejected plasma being electrically neutral.

A radiation system includes a patient station including a plurality of accelerator systems and a microwave generation system configured to generate microwaves for the plurality of accelerators. The plurality of accelerators are configured to provide substantially simultaneous multiple radiation beams from the plurality of accelerators. The microwave generation system includes a plurality of radio frequency (RF) sources, each RF source being configured to generate separate microwave signals for corresponding respective ones of the plurality of accelerator systems, and a plurality of modulators, each modulator being configured to modulate generation of the separate microwave signals by the respective ones of the plurality of RF sources. The respective ones of the plurality of RF sources and plurality of modulators are included in a respective plurality of RF chains, each RF chain including a respective circulator and dose rate servo.

An X-band small-focus accelerator for non-destructive testing is provided, including: a magnetron used to generate microwaves; an accelerating tube used to accelerate electrons, where the accelerating tube is an X-band accelerating tube; a microwave system connected between the magnetron and the accelerating tube, and used to feed the microwaves generated by the magnetron into the accelerating tube; an electron gun connected to the accelerating tube, and used to emit an electron beam into the accelerating tube; and an electron gun power supply used to supply power to the electron gun, where the accelerating tube, the microwave system, the magnetron and the electron gun power supply are arranged in sequence in a front-rear direction of the accelerator to determine a length of the accelerator.

A ray generating device and a control method thereof are provided. The ray generating device includes: an electronic beam generating device; a microwave generating device; a microwave circulator, having a power input port and at least two power output ports, the power input port being connected to the microwave generating device; a plurality of accelerating tubes respectively connected to at least two power output ports, configured to respectively receive a plurality of electronic beams, and accelerate electronic beams respectively through microwaves received from the at least two power output ports, and to respectively generate a plurality of rays having at least two different energies; and a controller, configured to perform chronological control on microwave power of the microwave generating device, and chronological control on beam loadings of the electronic beams generated by the electronic beam generating device and respectively corresponding to accelerating tubes.

A system for producing a high-speed beam of electrons can include a racetrack microtron (RTM) powered by a magnetron. The RTM can include a linear accelerator (linac) integrated with a racetrack-shaped beam path to accelerate a beam of electrons using continuous wave (CW) radio-frequency (RF) electromagnetic energy provided by the magnetron.