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Method and device for proton tomography

A tomography and proton technology, applied in the directions of X-ray/γ-ray/particle irradiation therapy, etc., can solve the problems of poor spatial resolution and inaccurate scanning, and achieve accurate scanning, high scanning accuracy, and small error. Effect

Inactive Publication Date: 2014-08-13
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

[0008] The invention provides a proton tomography method and device, which solves the technical problems of inaccurate scanning, error and poor spatial resolution in the existing proton tomography method, and realizes accurate scanning and high scanning precision of the manufacturing tomography method , the error is small, and the technical effect of high spatial resolution

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  • Method and device for proton tomography
  • Method and device for proton tomography

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Embodiment 1

[0056] In Embodiment 1, a proton tomography method is provided, please refer to Figure 1-Figure 10 , the method includes:

[0057] S10, using the treatment head to emit proton beams;

[0058] S20, performing modulation, matching and shaping on the proton beam, so that the proton beam is irradiated on a predetermined part of the object;

[0059] S30, realizing 1:1 imaging of the proton beam through a magnetic lens group;

[0060] S40, using a scintillator crystal and a CCD camera to realize real-time image acquisition.

[0061] Wherein, in the embodiment of the present application, the modulation, matching and shaping of the proton beam specifically includes:

[0062] Firstly, using an aperture to limit the proton beam to limit the lateral emittance of the proton beam within a preset range;

[0063] Then, use a beam diffuser to increase the lateral inclination of the protons;

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Abstract

The invention discloses a method and device for proton tomography. The method includes the steps that firstly, proton beams are emitted through a treatment head, then the proton beams are modulated, matched and shaped, so that the preset position of an object is irradiated with the proton beams, 1:1 imaging of the proton beams is achieved through a magnetic lens set, and finally images are collected in real time through scintillating medium crystals and a CCD camera. The method and device solve the technical problems that an existing method for proton tomography is not accurate in scanning, errors exist and the spatial resolution is poor. The method for proton tomography has the technical advantages that scanning is accurate, scanning accuracy is high, the number of errors is small, and the spatial resolution is high.

Description

technical field [0001] The invention relates to the field of proton radiation research, in particular to a proton tomography method and device. Background technique [0002] With the development and progress of science and technology, the environment is also deteriorating day by day. Correspondingly, more lesions appear in people's bodies, such as tumors. As people pay more and more attention to health, there is a demand for effective treatment methods for tumors. Also more intense. [0003] The general tumor treatment methods on the market can basically be summarized into three types: surgery, chemotherapy, and radiotherapy, which are compatible and complementary to each other, and most cancer patients will use radiotherapy. The types of particles used in current radiotherapy include electrons, X-rays, gamma rays, protons, and heavy ions. The different energy attenuation characteristics of these particles in the human body bring different therapeutic effects. Relatively s...

Claims

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Application Information

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IPC IPC(8): A61N5/10
Inventor 魏涛杨国君李一丁张小丁江孝国张卓石金水
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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