Fast and accurate imaging assembly and method of proton CT system

Abstract

The invention discloses a fast and accurate imaging assembly of a proton CT system. The fast and accurate imaging assembly of the proton CT system comprises a magnetic lens group, a scintillator, a CCD camera and a data processing computer; a proton beam is irradiated on the magnetic lens group after passing through a collected object, and is then irradiated in the scintillator, so that the scintillator gives out light, the CCD camera takes pictures of the luminous scintillator as a record, finally, the light intensity and irradiation range are converted through the data processing computer. The invention further discloses a fast and accurate imaging method of the proton CT system. According to the invention, the proton energy data distribution can be obtained in a short time, and the Zumbro magnetic lens group is added to eliminate the Coulomb scattering phenomenon of the proton beam on the collected object, and finally, an accurate image is obtained; furthermore, the used plastic scintillator is easily processed into various shapes, thereby being better in absorption effect for the proton beam.

Description

technical field [0001] The invention belongs to the technical field of clinical medical devices, and in particular relates to a fast and accurate imaging component and method of a proton CT system. Background technique [0002] Proton therapy is a tumor treatment method that is unanimously recognized by the medical community all over the world. In many types of radiotherapy, the physical dose distribution and biological effects of x-rays and electrons damage normal cells to varying degrees, and the effective utilization rate of the dose is relatively low. The biological effects of seeds and negative π particles are very good, but poor physical dose distribution will cause great damage to normal tissues, so they are not ideal therapeutic rays. The energy decay of protons in the human body starts relatively slowly, then rises sharply, forms a peak, and then drops sharply until it reaches zero (that is, the Bragg peak). In proton therapy, aligning the peak of the Bragg peak at...

AI Technical Summary

Problems solved by technology

However, due to the complexity of proton CT, there are many problems to be solved

For example, the multiple Coulomb scattering of proton beams in different media will cause angular dispersion, which will lead to blurred and inaccurate imaging. In order to overcome the above problems, a solution is now provided

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