17 results about "Electron linac" patented technology

An ion implantation system including an ion source for generating an ion beam, an end station for holding a substrate to be implanted by the ion beam, and a linear accelerator disposed between the ion source and the end station and adapted to accelerate the ion beam, the linear accelerator including a beam tube for transmitting the ion beam, the beam tube having at least five adjoining sidewalls, at least one resonator coupled to the beam tube, and at least one turbomolecular pump coupled to the beam tube, wherein at least one of the at least five adjoining sidewalls of the beam tube has an opening formed therein for providing access to an interior of the beam tube.

An ion implantation system including an ion source for generating an ion beam, an end station for holding a substrate to be implanted by the ion beam, and a linear accelerator disposed between the ion source and the end station and adapted to accelerate the ion beam, the linear accelerator including a beam tube for transmitting the ion beam, the beam tube having at least five adjoining sidewalls, at least one resonator coupled to the beam tube, and at least one turbomolecular pump coupled to the beam tube, wherein at least one of the at least five adjoining sidewalls of the beam tube has an opening formed therein for providing access to an interior of the beam tube.

A linear accelerator apparatus may include a beamline enclosure that defines a polygonal backbone, and a plurality of acceleration stages, disposed along a length of the beamline enclosure. A given acceleration stage may include a drift tube assembly to conduct an ion beam therethrough, a resonator, coupled to deliver an RF signal to the drift tube assembly, and a quadrupole assembly to shape the ion beam. As such, at a first acceleration stage, a first resonator may be disposed along a first side of the polygonal backbone, and at a second acceleration stage, adjacent to and downstream of the first acceleration stage, a second resonator may be disposed along a second side of the polygonal backbone, different from the first side.

An ion implantation system has a first linear accelerator for accelerating ions of an ion beam to a first energy along a beam path. A second linear accelerator positioned downstream of the first linear accelerator along the beam path accelerates the ions to a second energy. A charge stripper has a stripper tube with a passageway positioned between the first and second linear accelerators. A charge stripping medium is provided in the passageway to strip at least one electron from the ions as the ion beam passes through the charge stripping medium. A focusing apparatus is associated with the stripper tube to control a trajectory of the ions within the passageway of the stripper tube. The focusing apparatus can be two or more quadrupoles and include an electrostatic lens, a magnet, a solenoid, or a Einzel lens.

A resonator is provided for an RF linear accelerator and has a housing defining a housing volume. An electrode is configured to accelerate ions and is disposed external to the housing volume. A tube is electrically conductive and has an electrode portion and a coil portion. The electrode portion 5 is electrically coupled to the electrode. The tube is generally defined by a tube diameter. The coil portion has a predetermined shape when viewed along a first axis and is disposed within the housing volume. The coil portion defines a coil length when viewed perpendicular to the first axis. The coil portion of the tube is turned three 10 or fewer turns about the first axis. The coil length is less than approximately six times the tube diameter, and six times the tube diameter is less than approximately 1500mm.

A food irradiation system comprising a plurality of compact linear accelerator systems is described herein. Each of the plurality of compact linear accelerator systems includes: a high energy particle beam source providing a particle beam up to 10 MeV; an emission target assembly configured to generate bremsstrahlung x-rays when impacted by particles of the particle beam; and a drift tube through which the particle beam passes on a path from the high-energy particle beam source to the emission target assembly. The emission target assembly is positioned at the distal end of the drift tube for direct impinging of the particle beam to generate bremsstrahlung x-rays in the directed radiation beam. Each of the plurality of compact linear accelerator systems is individually positioned such that the plurality of compact linear accelerator systems as a group provide directed radiation beam coverage for the total cumulative volume at a prescribed radiation dose level.

A linear accelerator apparatus may include a beamline enclosure that defines a polygonal backbone, and a plurality of acceleration stages, disposed along a length of the beamline enclosure. A given acceleration stage may include a drift tube assembly to conduct an ion beam therethrough, a resonator, coupled to deliver an RF signal to the drift tube assembly, and a quadrupole assembly to shape the ion beam,. As such, at a first acceleration stage, a first resonator may be disposed along a first side of the polygonal backbone, and at a second acceleration stage, adjacent to and downstream of the first acceleration stage, a second resonator may be disposed along a second side of the polygonal backbone, different from the first side.

The invention relates to a device for producing radionuclides, in particular diagnostic and therapeutic radionuclides, on the basis of the principle of photo-nuclear radiation, comprising an electron accelerator (1), which generates an electron beam (2) with temporal structural features for the linear electron accelerator (1), a converter target assembly (21), which is arranged between the electron accelerator (1) and the converter target assembly (21), the invention relates to a converter target assembly (21) for generating radionuclides, comprising a converter target (20) for converting the electron beam (2) into bremsstrahlung photons (15), a plurality of production targets (17) irradiated by the bremsstrahlung photons (15) in order to generate the radionuclides, the converter target assembly (21) comprising a sealed housing (9) enclosing a cavity (19) accommodating the converter target (20), comprising an entrance window with a window disk (23) for the electron beam (2) and an exit window for the bremsstrahlung photons (15), comprising cooling medium ports (10) which are part of a cooling circuit (11) for establishing a cooling flow through the cavity (19) in order to cool the converter target (20) and the window disk (23), the converter target (20) comprises a plurality of rotatable converter discs (12), the electron beams (2) are arranged off-center with respect to the respective converter discs (12), and wherein the respective converter discs (12) are designed to rotate during operation of the device such that the converter discs (12) are arranged on the converter target (20) over time. The focus of the electron beam (2) is dispersed onto an annular region (14) of the converter disk (12) in multiple rotations.

An ion implantation system has a first linear accelerator for accelerating ions of an ion beam to a first energy along a beam path. A second linear accelerator positioned downstream of the first linear accelerator along the beam path accelerates the ions to a second energy. A charge stripper has a stripper tube with a passageway positioned between the first and second linear accelerators. A charge stripping medium is provided in the passageway to strip at least one electron from the ions as the ion beam passes through the charge stripping medium. A focusing apparatus is associated with the stripper tube to control a trajectory of the ions within the passageway of the stripper tube. The focusing apparatus can be two or more quadrupoles and include an electrostatic lens, a magnet, a solenoid, or a Einzel lens.

Radiation beam alignment for a linear accelerator (LINAC) and gantry comprising steps of: For each beam alignment parameter value in a set (for example A-D): (a) With the beam alignment parameter of t

A linear accelerator. The linear accelerator may include a buncher to generate a bunched particle beam from a charged particle beam, and a plurality of acceleration stages, to accelerate the bunched particle beam. The linear accelerator may further include a phase control system, to individually measure a phase of an RF signal that is applied at a first frequency to a given acceleration stage of the plurality of acceleration stages. The phase control system may include an RF signal pickup assembly, comprising a plurality of RF signal detectors, arranged separately in the plurality of acceleration stages. The phase control system may further include a phase measurement circuit, to convert an RF pickup signal, received from an RF signal detector of the RF pickup assembly, into a digital baseband signal, for determining a phase of the RF signal.

A multifrequency linear accelerator system (100) which can be used to generate multidirectional particle beams (101. 102) for, e.g., multidimensional radiotherapy and X-ray imaging is described. The system (100) comprises an electromagnetic ‘EM’ source (104), a first linear accelerator (106) operable at a first frequency, a second linear accelerator (108) operable at a second, different, frequency, a first circulator (110) and a second circulator (112). The first linear accelerator (106) is arranged to received EM power (118) supplied from the EM source at the first frequency via the first circulator (110), and the second linear accelerator (108) is arranged to receive EM power (120) supplied by the EM source at the second frequency via the first circulator (110) and the second circulator (112).

The application provides a method for installing solenoid of an electron linear accelerator, which comprises the following steps: setting a front stand; setting a middle stand for installing at least one component of the front part in the rear section and a solenoid focusing assembly, wherein the solenoid focusing assembly is slidably arranged on the middle stand; setting a rear stand for installing an accelerating tube assembly; when replacing the solenoid, removing all the components of the front part on the middle stand and the support seat thereon, moving the solenoid focusing assembly towards the front stand to make the solenoid out of the accelerating tube; assembling a new solenoid into the solenoid focusing assembly and moving the solenoid focusing assembly towards the rear stand to make the solenoid into the accelerating tube; then, assembling the support seat on the middle stand; and installing the removed components on the middle stand and performing system collimation.

A linear accelerator. The linear accelerator may include a buncher to generate a bunched particle beam from a charged particle beam, and a plurality of acceleration stages, to accelerate the bunched particle beam. The linear accelerator may further include a phase control system, to individually measure a phase of an RF signal that is applied at a first frequency to a given acceleration stage of the plurality of acceleration stages. The phase control system may include an RF signal pickup assembly, comprising a plurality of RF signal detectors, arranged separately in the plurality of acceleration stages. The phase control system may further include a phase measurement circuit, to convert an RF pickup signal, received from an RF signal detector of the RF pickup assembly, into a digital baseband signal, for determining a phase of the RF signal.

Linear accelerators with accelerator sections, X-ray source including the same, and methods of operating a linear accelerator are disclosed. A linear accelerator can include a first section having a first acceleration axis, a second accelerator having a second acceleration axis oblique to the first acceleration axis, and a radiofrequency source coupled to the first acceleration section and second acceleration section.

A linear accelerator system according to an embodiment is for generating an MeV electron beam. The linear accelerator system includes a linear accelerator cavity having an enclosure, wherein the enclosure is open at one end to provide an exit port for the MeV electron beam; and a switchable magnet unit designed to, in a deflection mode, generate a magnetic field within the linear accelerator cavity to enable at least one electron, emitted within the linear accelerator cavity, to interact with the enclosure due to deflection away from the exit port caused by the magnetic field. Accordingly, in an embodiment, in the deflection mode, an intensity of the MeV electron beam passing through the exit port is relatively lower than an intensity of the MeV electron beam passing through the exit port in a beam generation mode of the switchable magnet unit.