| 摘要 |
The idea concerns irradiation of a target volume (53), wherein intensities for target points (70) are determined which are sequentially approached by a beam, comprising the following steps: detecting a volume (63) to be protected, wherein a dose generated by irradiating a target volume (53) does not exceed a predetermined maximum value; determining intensities for target points (70) in such a way that within the volume (63) to be protected the generated dose does not exceed the predetermined maximum value, wherein a dose contribution data record is used for determining the intensities, which dose contribution data record comprises the dose generated at other spots (73) by directing the beam (10) on one of the target points (70) with a predetermined intensity. |
| 主权项 |
1. Method for planning an irradiation of a target volume in an object,
wherein individual target points are to be sequentially approached by an ion particle beam, which is pre-accelerated and then further accelerated, and wherein irradiation intensities for each individual target point in the object are to be determined, the method comprising the following steps: detecting a volume to be protected wherein a total dose generated by irradiating the target volume shall not exceed a predetermined maximum value, determining the irradiation intensities for the individual target points in such a way that within the volume to be protected, the total dose does not exceed the predetermined maximum value in scheduled irradiation, wherein a dose contribution data record is used for determining the irradiation intensities, which dose contribution data record comprises partial doses generated at other spots in the object by directing the ion particle beam in scheduled irradiation on one of the individual target points with a predetermined irradiation intensity, wherein the dose contribution data record can be used for controlling a device for irradiating the target volume using the ion particle beam, wherein the individual target points and the other spots are arranged in a grid, and the dose contribution data record comprises for each target point and for each other spot, the dose contributions generated on the other spots by directing the ion particle beam with a predetermined number of particles on the target point, detecting, in comparison to at least one of an original irradiation plan or a previous irradiation session, change in at least one of position, size, or shape of at least one of the volume to be protected or the target volume, detecting an overlap of the target volume with the volume to be protected, changing irradiation planning by taking into consideration the detected change, and protecting the volume to be protected by setting inactive target points that overlap with the volume to be protected. |
