A system for producing medical short-lived radioactive sources using pressurized water reactor nuclear power plants

Abstract

The invention discloses a system of utilizing a pressurized water reactor nuclear power station to produce a medical short life radioactive source, comprising a core irradiation subsystem (1) used for moving at least one radiation object to the gauge pipe of a nuclear reactor to perform irradiation treatment; a radiation object transmission subsystem (2) used for controlling the radiation object to enter or remove from the core irradiation subsystem (1); a radiation object detection and storage subsystem (3) used for detecting the activity of radiation objects, and storing radiation objects meeting requirements after detection in a storage container; and a radiation object supplement subsystem (4) used for supplementing radiation objects for the core irradiation subsystem (1), wherein the core irradiation subsystem (1), the radiation object transmission subsystem (2), the radiation object detection and storage subsystem (3) and the radiation object supplement subsystem (4) are in communication through pipelines. The system can measure core neutron flux density, and meanwhile prepares radioactive isotopes, and possesses the advantages of convenience, high efficiency, etc.

Description

technical field [0001] The invention relates to the technical field of pressurized water reactor nuclear power plants, in particular to a system for producing medical short-lived radioactive sources by using pressurized water reactor nuclear power plants. Background technique [0002] At present, radioisotopes are widely used in the medical field, such as cancer treatment, medical imaging and labeling technology, cancer and other disease diagnosis and medical sterilization, etc. The isotopes used in the medical field include F-18, Sr-89, Tc-99m , Pd-103, I-123, I-125, I-131, etc. The half-life of medical radioisotopes is relatively short, generally on the order of several days or even hours, so it must be transported quickly from the radioisotope production site to the specific application site. The production of medical short-lived radioisotopes mainly uses cyclotrons or particle accelerators, which are bulky and require expensive radiation and extraction equipment. For me...

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Problems solved by technology

[0005] However, the inventors found that the technical solution of the application for this invention still has deficiencies: this technology is applied to boiling water reactors, and the mechanical transmission gear is used to drive the radioactive source pellets into the core, which requires a large number of pellets, because the length of the finger sleeve is 13.3-16.2m, which requires small balls to fill the entire finger sleeve, which is difficult to realize. At the same time, it is impossible to measure the neutron fluence rate of the core. When measuring the neutron fluence rate of the core, it is necessary to The system is drawn out, which is not conducive to the measurement of the neutron flux rate of the core

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