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AssigneeGSI Helmholtzzentrum für Schwerionenforschung GmbH
InventorsChristoph Bert, Eike Rietzel
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The invention concerns a process for the deposition of an intended dose distribution in a cyclically moved target region moving cyclically (102) by means of multiple irradiations with a beam (105) approaching matrix points of a target matrix in at least two scannings, wherein in each of the scannings, matrix points are approached sequentially. It is characterized through the steps: establishing the maximal tolerance level for local deviation from the intended dose distribution, de-synchronizing the sequence of the irradiation and the cyclical motion of the target region (102), and partitioning the irradiation of the target region (102) in a sufficient number of scannings such that local deviations from the intended dose distribution correspond at most to the maximal tolerance level of deviation from the intended dose distribution. Furthermore, the invention also concerns an irradiation apparatus for executing a process of this type and a process for determining the control parameters for said irradiation apparatus.
A process for the deposition of an intended dose distribution in a cyclically moved target region (102) by means of multiple irradiations with a beam (105) irradiating matrix points of a target matrix in at least two scans by which in each of the scans matrix points are approached sequentially, characterized by the steps:
An irradiation apparatus for the deposition of an intended dose to a cyclically moved target region (102) by means of multiple irradiations having a beam generating device (104) and a control device (106, 108, 110, 112, 114, 116), wherein the beam generating device (104) and the control device (106, 108) are designed for approaching matrix points of a target matrix with a beam (105) in a least two scannings, wherein in each of the scannings the matrix points are irradiated sequentially, characterized in that the irradiating apparatus has a defining unit through which the maximal tolerance level for deviation from the intended dose distribution is defined, that the control device is equipped for de-synchronization of the sequence of the irradiation and the cyclical motion of the target region (102) and allows for a partitioning of the irradiation of the target region in a sufficient number of scannings in order that local deviations from the intended dose distribution correspond at most to the maximal tolerance level of deviation from the intended dose distribution.
Dependencies are inferred from the claim text.