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Neutron capturing therapeutic system

A treatment system and neutron technology, applied in the fields of treatment, X-ray/γ-ray/particle irradiation therapy, radiotherapy, etc., can solve the problems of insufficient structural accuracy, affecting the safety of boron neutron capture treatment, etc., and improve the structural strength. Effect

Pending Publication Date: 2019-12-03
NEUBORON THERAPY SYST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lead is usually used as a reflective material in the prior art, but the creep effect of lead will lead to insufficient structural precision, thus affecting the safety of the entire boron neutron capture therapy

Method used

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Embodiment Construction

[0040] Particles (such as neutrons) produced by accelerators need to be installed with reflectors to reduce the particle radiation leakage rate, and shields are required to provide radiation safety shielding. Lead or lead alloys are materials traditionally used for reflection or shielding, however, lead has a significant creep effect and cannot provide structural rigidity and long-term service life.

[0041] Such as figure 2 As shown, the present application provides a neutron capture therapy system 100. The neutron capture therapy system 100 includes an accelerator 200 for generating a charged particle beam P, and a neutron beam that generates a neutron beam after being irradiated by the charged particle beam P. Generator 10 , beam shaper 20 for shaping the neutron beam, and collimator 30 . The beam shaper 20 includes a retarder 21 and a reflection part 22 wrapped around the retarder. The neutron generator 10 generates a neutron beam N after being irradiated by a charged p...

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Abstract

The application provides a neutron capturing therapeutic system. The neutron capturing therapeutic system comprises an accelerator, a neutron producing part, and a beam shaping body, wherein the accelerator is used for producing a charged particle beam; the neutron producing part is used for producing a neutron beam after being illuminated by the charged particle beam; the beam shaping body is used for shaping the neutron beam, and comprises a retarding body and a reflection part coating the outer periphery of the retarding body; the neutron producing part is used for producing neutrons afterbeing illuminated by the charged particle beam; the retarding body is used for retarding neutrons produced by the neutron producing part to a pre-set energy spectrum; and the reflection part comprisesa reflector which can guide deflected neutrons back to increase the neutron intensity in the pre-set energy spectrum and a support member which can support the reflector. According to the neutron capturing therapeutic system disclosed by the invention, lead-antimony alloy is used as the reflector to improve the creep deformation effects caused by single use of lead materials as the reflector, sothat the structural strength of the beam shaping body is improved.

Description

technical field [0001] The invention relates to a radiation therapy system, in particular to a neutron capture therapy system. 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 damage to normal tissues around the tumor, the concept of target therapy in chemotherapy (chemotherapy) has been applied to radiation therapy; and for tumor cells with high radiation ...

Claims

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Application Information

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IPC IPC(8): A61N5/10
CPCA61N5/10A61N5/1065A61N5/1048A61N2005/109A61N2005/1094A61N2005/1092
Inventor 蔡炅彣陈韦霖
Owner NEUBORON THERAPY SYST LTD
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