Patent ID: 8901519

Claim:
A device for adjusting the range of an ion beam ( 10 ), in particular for the therapeutic treatment of a patient using radiation of a target volume ( 20 ) by ions, containing: a range adjustment device ( 2 , 109 ) for the ion beam ( 10 ) along an original beam axis ( 11 ), in which the ion beam ( 10 ) experiences different energy losses in the process of passing through different regions of the range adjustment device ( 2 , 109 ), a sensor ( 6 ) for detecting a position ( 21 , 22 , 23 ) of the target volume ( 20 ), which provides data ( 30 ) corresponding to the position ( 21 , 22 , 23 ), a regulating device ( 7 ), which receives the data ( 30 ) of the sensor ( 6 ) and generates a control signal ( 31 ) correlating to the position ( 21 , 22 , 23 ) of the target volume ( 20 ), and an adjustable first deflection device ( 1 , 103 ), which is located prior to the range adjustment device ( 2 , 109 ) in the direction of the beam, for deflecting the ion beam ( 10 ) from its original beam axis ( 11 ) to a beam axis ( 11 a , 11 b , 11 c ) that is inclined to the original beam axis ( 11 ), in order that the ion beam ( 10 ) may be deflected towards different regions of the range adjustment device ( 2 , 109 ) wherein the range adjustment device ( 2 , 109 ) is located on the inclined beam axis ( 11 a , 11 b , 11 c ), and wherein the deflection of the ion beam ( 10 ) in regard to the control signal ( 30 ) is configured such that the ion beam ( 10 ) may pass through an appropriate region of the range adjustment device ( 2 , 109 ), such that the range of the ion beam ( 10 ) is adjusted to the position ( 21 , 22 , 23 ) of the target volume ( 20 ) and the Bragg peak is placed within the region of the target volume ( 20 ).