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Method and irradiation installation for irradiating a target volume

A technology of irradiation device and target area, which is applied in the field of irradiation target area and irradiation device, can solve problems such as affecting parameters, and achieve the effect of high-precision mobile tracking

Active Publication Date: 2015-04-22
GSI重离子研究亥姆霍茨中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, this method can only be applied to certain ion combinations and is associated with the type of accelerator facility
In addition, only certain parameters of the two ion beams can be influenced jointly

Method used

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  • Method and irradiation installation for irradiating a target volume
  • Method and irradiation installation for irradiating a target volume
  • Method and irradiation installation for irradiating a target volume

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Embodiment Construction

[0102] Detailed Description of the Invention

[0103] figure 1 The tumor is shown as a clinical target volume 12 (CTV) according to the ICRU 50 in the reference movement phase 12a. The tumor 12 moves within an envelope in which, for example, movement states 12 a , 12 b , 12 c and 12 d are formed. The envelope forms an internal target volume 14 (internal target volume, ITV) according to the ICRU 62 .

[0104] In order to obtain information about the range distribution over the entire inner target volume 14 by means of radiographic measurements with the ion radiographic detector 20 , no further measures are generally required during passive irradiation with scattered ion beams 16 because Originally, the entire inner target area 14 is irradiated simultaneously.

[0105] figure 2 Illumination of a clinical target volume 12 with a scanned ion beam 18 is shown. In order to obtain information about the range distribution over the entire inner target volume 14 by means of rad...

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Abstract

The invention relates to a method and an irradiation installation for irradiating a moving target volume with an ion beam, particularly for the purpose of tumour therapy. Ion radiography measurements are carried out for said target volume, and the irradiation for the deposition and for the radiography are carried out using the same ion beam but in a temporally consecutive manner, with the power of the ion beam being switched between a higher radiography power and a lower deposition power using, for example, a passive power modulator proximal to the patient.

Description

technical field [0001] The invention relates to a method and an irradiation device for irradiating a target area by means of an ion beam, in particular for treating tumors. Background technique [0002] Background of the invention [0003] The movement of tumors in ion beam therapy poses a special challenge to irradiation, namely ensuring that the clinical target volume is still covered with the prescribed dose even in the presence of movement. For this purpose, specially designed safety margins are usually used for ion beam therapy with scattered radiation, which until now has been considered sufficient. [0004] However, interference effects can occur in the scanned beam, which require further measures. Said measures refer to beam application by means of so-called gating or so-called beam tracking, respectively to provide the tumor movement or the tumor movement phantom used in real time It is based on a mobile detection system in order to interrupt the beam if necessa...

Claims

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Application Information

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IPC IPC(8): A61N5/10
CPCA61N2005/1062A61N5/107A61N5/1043A61N2005/1087A61N2005/1054A61N2005/1095
Inventor C·贝尔特A·吉梅尔R·卢赫滕贝格
Owner GSI重离子研究亥姆霍茨中心有限公司