Siemens Healthcare Gmbh

Siemens Healthineers Ag

Marvin Moeller

Stefan Willing

Sven Mueller

Martin Koschmieder

Benno Cyliax

Claudia Noak

Oliver Heuermann

Stefan Setzer

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.

Linear accelerator system having a magnet unit for electron beam deflection

One or more example embodiments of the present invention relates to a radiofrequency source for a linear accelerator system, to the linear accelerator system, to a method for operating a radiofrequency source, and to an associated computer program product.

Radiofrequency source having a phase stabilization element

A method is for closed-loop control of an X-ray pulse chain generated via a linear accelerator system. In an embodiment, the method includes modulating a first electron beam within a first radio-frequency pulse duration, wherein the first multiple amplitude X-ray pulse is produced on modulating the first electron beam; measuring time-resolved actual values of the first multiple amplitude X-ray pulse; adjusting at least one pulse parameter as a function of a comparison of the specified multiple amplitude X-ray pulse profile and the measured time-resolved actual values; and modulating a second electron beam within a second radio-frequency pulse duration as a function of the at least one adjusted pulse parameter for production of the second multiple amplitude X-ray pulse, so the X-ray pulse chain is controlled.

Closed-loop control of an X-ray pulse chain generated by means of a linear accelerator system

A target is for generating X-ray radiation by way of loading with a particle stream containing charged particles. In an embodiment, the target includes a layer structure including at least two metallic layers. A target surface, loadable by the particle stream, is formed by a first layer of the at least two metallic layers of the layer structure including a material including a first metallic element. A second layer of the at least two metallic layers of the layer structure includes a material including a second metallic element. Finally, an ordinal number of the first metallic element is less than an ordinal number of the second metallic element.

Target for generating X-ray radiation, X-ray emitter and method for generating X-ray radiation

An x-ray device is for creation of high-energy x-ray radiation. In an embodiment, the x-ray device includes a linear accelerator. The linear accelerator, for creation of x-ray radiation, is embodied so as to create an electron beam directed onto a target, of which the kinetic energy per electron amounts to at least 1 MeV. In an embodiment, the x-ray device further includes a beam limiting device, arranged in the beam path of the electron beam between linear accelerator and the target, including an edge region surrounding a beam limiting device opening. A material thickness of the edge region, in a propagation direction of the accelerated electron beam emerging from the linear accelerator, amounting to less than 10% of the average reach of electrons of the created kinetic energy in the material of the edge region.

X ray device for creation of high-energy x ray radiation

A high-voltage generator provides a high-voltage pulse including a plurality of energy storage cells, each including two input and two output terminals and a capacitor. A controllable switching element is connected to the input terminals and plus terminals and minus terminals are electrically connected to one another via a respective diode. The high-voltage generator further includes a series connection comprising the energy storage cells, a pulse transformer, and a charging terminal for charging the capacitors. In an embodiment, the high-voltage generator is developed so that a greater pulse rate can be achieved. In an embodiment, at least a respective one of the energy storage cells includes an electrical resistance, connected in series with the diode connecting the plus terminals of the respective energy storage cell.

Growing community of inventors

Jena, Germany

Marvin Moeller