Radiant ray detection system and radiant ray detection method for neutron capture treatment system

Abstract

The invention provides a radiant ray detection system capable of improving the accuracy of a neutron beam irradiation dosage in a neutron capture treatment system on one hand; the neutron capture treatment system comprises a charged particle beam, a charged particle beam inlet allowing the charged particle beam to pass, a neutron forming portion nuclearly reacting with the charged particle beam so as to form a neutron beam, a beam shaping body used for adjusting the flux and quality of the neutron beam formed by the neutron forming portion, and a beam outlet adjacent to the beam shaping body; the neutron forming portion is contained in the beam shaping body; the radiant ray detection system comprises a radiant ray detector arranged in the beam shaping body or outside the beam shaping body; the radiant ray detector is used for real time detecting an overflowing neutron beam or gamma ray formed by the neutron forming portion after nuclear reaction between the charged particle beam and the neutron forming portion. The invention also provides a radiant ray detection method capable of improving the accuracy of the neutron beam irradiation dosage in the neutron capture treatment system on the other hand.

Description

technical field [0001] The present invention relates to a radiation detection system, in particular to a radiation detection system for a neutron capture therapy system; the present invention also relates to a radiation detection method, in particular to a radiation detection system for a neutron capture therapy system Radiation detection method. 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....

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Problems solved by technology

[0006] However, at this time, for example, if the irradiation dose rate of the neutron beam fluctuates for some reason after the radiation dose of the gold wire is measured, it cannot sufficiently cope with the fluctuation, and the planned irradiation dose may be adjusted. It may become difficult to irradiate the neutron beam to the object to be irradiated

That is to say, in the above-mentioned neutron capture therapy system, the neutron beam irradiation dose cannot be detected in real time

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