摘要:
The invention relates to a particle energy adjustment system (1) for variably changing the energy of a particle beam (2, 10). The particle energy adjustment system (1) is provided with a variable energy variation device (8) having a control value correction unit (7) for correcting a supplied control value (11). The control value correction unit (7) corrects the supplied control values (11) using previously determined calibration data (15).
摘要:
The invention relates to a device and to a method for adjusting the range of an ion beam (10), particularly for irradiation in tumor therapy. For this purpose, first the reference position of a target volume (20) to be irradiated is determined. The range of the ion beam is set such that it is adjusted to the reference position of the target volume so that the Bragg maximum, which is to say the maximum energy loss and therefore also the maximum damage, is in the region of the target volume to be destroyed. If a change (21-23) of the reference position is detected by a movement of the target volume, the ion beam is deflected out of the beam axis (11) such that the ion beam is guided across different regions of a range modulator (2), thereby compensating for the positional change of the target volume as a result of the adjustment of the range of the ion beam and pushing the Bragg maximum back into the region of the target volume.