Neutron capture treatment system and target material used for particle line generating device

Abstract

The invention provides a neutron capture treatment system and a target material used for a particle line generating device, which have the advantages that the heat dissipation property of the target material can be promoted, bubbling can be reduced, and the life of the target material is prolonged. The neutron capture treatment system provided by the invention comprises a neutron generating deviceand a beam shaping body, wherein the neutron generating device comprises an accelerator and the target material, charged particle lines generated by acceleration of the accelerator act with the target material, then neutron lines are generated, the target material comprises an action layer, a base layer and a heat dissipation layer, the action layer acts with the charged particle lines to generate neutron lines, the base layer supports the action layer, and the heat dissipation layer comprises a pipe-shaped part formed by a plurality of pipes distributed side by side.

Description

technical field [0001] One aspect of the present invention relates to a radiation irradiation system, in particular to a neutron capture therapy system; another aspect of the present invention relates to a target for a radiation irradiation system, in particular to a particle beam generating device target. Background technique [0002] With the development of atomic science, radiation therapy such as cobalt 60, linear accelerator, and electron beam has become one of the main means of cancer treatment. However, traditional photon or electron therapy is limited by the physical conditions of the 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 radiation therapy Treatment for more radioresistant malignant tumors (eg glioblastoma multiforme, melanoma) is often less effective. [0003] In order to reduce radiation d...

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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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