摘要:
The invention relates to a local dosimeter device (1) having a scattering body (2, 3) formed from two scattering body assemblies (2, 3). The two scattering body assemblies (2, 3) have at least one alignment device (16, 17) for mutual alignment of the two scattering body assemblies (2, 3) to each other.
摘要:
The invention relates to a method (39) for determining boundary hypersurfaces (7, 8, 17, 21) from data matrices (3, 4, 10, 11, 24, 27, 37). The method (39) has the following steps: identification of the intermediate hypersurfaces (5, 13, 28, 38), situated between two respective matrix elements (3, 4, 10, 11, 24, 27, 37), that correspond to at least a portion of at least one boundary hypersurface (7, 8, 17, 21) to be determined; representation of the intermediate hypersurfaces (5, 13, 28, 38) identified in this manner by points (6, 29) that are adjacent to intermediate hypersurfaces; connection of the points (6, 29) that are adjacent to intermediate hypersurfaces by at least one respective closed curve (5, 14, 15, 25); combination of the hypersurface components (5, 13, 28, 38) formed by the closed curves (5, 14, 15, 25) to form at least one boundary hypersurface (7, 8, 17, 21).
摘要:
A method for controlling dosage application during irradiation of a moveable target volume in a body with an energy beam by scanning the target volume includes, before irradiating an i-th grid position, determining a dosage during the irradiation process using the movement data, wherein the dosage already contains the i-th grid position during irradiation of the previous grid positions (1
摘要:
The invention relates to a heat transfer device (1) for transferring heat from a heat source (20) to a heat sink (16). The heat transfer device (1) has contacting means (3) for establishing a thermal contact between the heat transfer device (1) and the heat source (20) as well as the heat sink (16). Furthermore, the heat transfer device (1) has heat conducting means (2) for transferring thermal energy between the heat source (20) and the heat sink (16). The heat conducting means (2) and the contacting means (3) are at least partly connected to one another by an ultrasonic welding operation.
摘要:
The invention relates to a method for irradiating a target with a beam moving to a target point, comprising the following steps: measuring at least one of the variables relating to the position of the beam and intensity of the beam, changing the beam as a function of the at least one measured variable, particularly as a function of a variance relating to the at least one measured variable. The method is characterized in that per target point, the at least one measured variable is measured no more than once. The invention further relates to a device for irradiating a target according to the claimed method and to a control system for controlling a device of said kind.
摘要:
The invention relates to a particle accelerator for radiotherapy by means of ion beams (150). The particle accelerator comprises a sixfold synchrotron ring (100) with six rectilinear beam sections (1 to 6) and six curved beam sections (7 to 12). Injection means (43) for introducing a linear-accelerated ion beam into the synchrotron ring (100) are situated on a first rectilinear beam section (1) of the six rectilinear beam sections (1-6). At least one acceleration element (44) for the ion beam is located along the course of a second rectilinear beam section (5). Extraction means (45) for extracting the internal beam that has been rapidly accelerated during several revolutions are situated on a third (4) rectilinear beam section. Each curved beam section (7 to 12) comprises a pair of dipole magnets (13/14, 15/16, 17/18, 19/20, 21/22, 3/24). A horizontally defocusing quadrupole magnet (31 to 36) is located between each pair of dipole magnets (13/14, 15/16, 17/18, 19/20, 21/22, 23/24) and a horizontally focusing quadrupole magnet (25 to 30) is located upstream of each dipole magnet pair (13/14, 15/16, 17/18, 19/20, 21/22, 23/24).
摘要:
The invention relates to an irradiation device (1) for proton and/or ion beam treatment, said device comprising a radiation source (3), a beam guiding device (5), and at least one treatment chamber (7) comprising a treatment site (9) and an access (17), into which a treatment beam (13) is directed. The invention is characterised in that the treatment chamber (7) is arranged in a first plane (E1), and the treatment beam (13) is directed into the treatment chamber (7) from a second plane (E2) located above or below the first plane, deviated therein, and oriented towards the treatment site (9) in such a way that it is oriented away from the access (17); the treatment chamber is provided with a shield (33) which is open towards the treatment site (9) and associated with the entrance region (E) of the treatment beam (13) in the treatment chamber (7); the access (17) is arranged on the side of the shield (33) opposing the treatment site (9); and at least one labyrinth (L) leading from the access (17) to the treatment site (9) is laterally offset in relation to the treatment beam (13) projecting into the treatment chamber (7) and to the shield (33).
摘要:
A method of generating a data set defining a plurality of target points in a target volume in a body at which a particle beam is to be directed in a continuous or discontinuous process includes directing a particle beam to each of the target points so as to provide a spatial dose distribution in an area around the respective target point. The target points include a first target point having z-spacing, measured in a direction of the particle beam in a homogenous body equivalent to the body, from an adjacent second target point at a higher or lower particle energy. The method also includes defining the target points in the data set by at least one of the z-spacing and the spatial dose distribution in dependence upon a particle energy of the respective target point.