Neutron capture therapy system and target material for particle line generation apparatus

Abstract

The invention provides a neutron capture therapy system and a target material for a particle line generation apparatus, which can enhance the heat radiation performance of the target material, prolongthe lifetime of the target material, and facilitate molding. The neutron capture therapy system comprises a neutron generation apparatus and a beam shaping body, the neutron generation apparatus comprises an accelerator and the target material, charged particle lines generated by acceleration of the accelerator and the target material produce an effect to generate neutron lines, the target material comprises an effect layer, a pedestal layer and a heat radiation layer, the effect layer and the charged particle lines produce an effect to generate the neutron lines, the pedestal layer supportsthe effect layer, the heat radiation layer comprises a cooling channel allowing circulation of a cooling medium, and the cooling channel is formed by additive manufacturing.

Description

Technical field [0001] On the one hand, the present invention relates to a radiation irradiation system, in particular to a neutron capture treatment system; on the other hand, the present invention relates to a target used in a radiation irradiation system, in particular to a particle beam generating device Of the target. Background technique [0002] With the development of atomic science, radiotherapy such as cobalt sixty, linear accelerator, and electron beam has become one of the main methods of cancer treatment. However, traditional photon or electron therapy is limited by the physical conditions of radiation itself. While killing tumor cells, it will also cause damage to a large number of normal tissues along the beam path. In addition, due to the different sensitivity of tumor cells to radiation, traditional radiotherapy For more radiation-resistant malignant tumors (such as: glioblastoma multiforme, melanoma), the treatment effect is often poor. [0003] In order to redu...

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Problems solved by technology

[0004] In the accelerator boron neutron capture therapy, the accelerator boron neutron capture therapy accelerates the proton beam through the accelerator, the proton beam is accelerated to an energy sufficient to overcome the Coulomb repulsion of the target nucleus, and undergoes a nuclear reaction with the target to produce neutrons, so in the generation During the proton process, the target will be irradiated by a very high-energy level of accelerated proton beams, the temperature of the target will rise sharply, and the metal part of the target will easily bubble, which will affect the service life of the target.

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