Phantoms and methods for quality assurance of hadron therapy devices

A technology of treatment equipment and phantom, which is applied in the field of quality assurance of hadron treatment equipment, and can solve the problems of reducing the efficiency of treatment facilities due to verification time and so on.

Active Publication Date: 2022-08-09
ION BEAM APPL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such long validation times reduce the efficiency of treatment facilities in terms of the number of treatments that can be performed per day

Method used

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  • Phantoms and methods for quality assurance of hadron therapy devices
  • Phantoms and methods for quality assurance of hadron therapy devices
  • Phantoms and methods for quality assurance of hadron therapy devices

Examples

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Embodiment Construction

[0046] figure 1is a perspective view of a phantom 10 according to an embodiment of the present invention. The frame structure 30 includes a base plate 35 having a first edge 50 and a second edge 60 . A number of elements can be mounted on the base plate: energy wedge 70 , SOBP wedge 170 , material block 100 . Three energy wedges are shown, but more or fewer energy wedges may be used. There is also a SOBP wedge 170 . The block of material 100 may be used to support absolute dosimeters and / or to support markers for positioning the phantom. The 2D detector is arranged at the second edge 60 of the base plate 35 and is mounted perpendicular to the second edge. One or two handles 32 may be positioned on the sides of the phantom 10 to facilitate manipulation and to increase the stiffness of the phantom 10 .

[0047] The SOBP wedge 170 and optionally the energy wedge 70 are made of a material with a relative density higher than 1.3, preferably higher than 1.5, preferably higher t...

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Abstract

The present invention provides a phantom and method for quality assurance of a hadron therapy device used in an intensity modulated particle therapy modality. The phantom includes a frame structure including a base plate, one or more energy wedges, a first face of the energy wedges inclined relative to the base plate and a second face of the energy wedges perpendicular to the base plate, and a 2D detector, the One or more energy wedges are mounted on the base plate; the one or more wedges and the 2D detector are in known fixed positions relative to the frame structure. The mold body also includes an extended Bragg peak wedge, the SOBP wedge having a first SOBP wedge face inclined relative to the base plate and a second SOBP wedge face perpendicular to the base plate, the SOBP wedge Supported by a material having a relative density higher than 1.3, preferably 1.5, more preferably 1.7. The present invention also provides a method for determining the compliance of a planned SOBP with an actual SOBP.

Description

technical field [0001] The present invention relates to the field of hadron therapy. More particularly, the present invention relates to phantoms and methods for quality assurance of hadron therapy devices used in Intensity Modulated Particle Therapy (IMPT) mode, also known as Pencil Beam Scanning (PBS) technology. Background technique [0002] Hadron therapy involves treating tumors by irradiating them with high-energy hadron beams. Preferred hadrons are generally protons and carbon ions. In current proton beam facilities, Pencil Beam Scanning (PBS) involves irradiating individual spots in the target, each spot having a predefined location and depth, and prescribing a predefined dose for each spot. In each treatment room of the facility, verification routines are required on a daily basis for various characteristics of the delivered beams. These characteristics are: [0003] - Beam range: the position (depth) of the Bragg peak in a given target (usually a water phantom ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/10
CPCA61N5/1075A61N5/1064A61N5/1071A61N2005/1076A61N2005/1087
Inventor 西蒙·马赛利斯塞维琳·罗索姆盖洛·德罗伊斯萨特约亨·克里默
Owner ION BEAM APPL
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