Method and equipment for producing medical isotopes based on high-power electron accelerator

Abstract

The invention belongs to the field of medical radioactive diagnosis and treatment nuclide, and particularly relates to a method and equipment for producing medical isotopes based on a high-power electron accelerator. The problems that in the prior art a method for producing 99Mo based on an accelerator is low in yield, 100Mo sample target machining difficulty is high, and other Tc isotope impurities can be generated are solved. High-energy electron beams emitted by the high-power electron accelerator are used for bombarding a conversion target to generate braking radiation; the braking radiation and a sample target are subjected to a photo-nuclear reaction to produce target medical isotopes, then the sample target containing the target medical isotopes is automatically transferred to a hotchamber by using a robot and a conveying belt, and the target medical isotopes are separated and purified from the sample target through a radiochemical separation procedure. The method is suitable for production of various medical radioactive isotopes such as 99Mo, 15O, 13N, 11C, 88Y, 123I, 125I, 111In, 57Co and 30P, 38K, 62Cu, 64Cu, 47Sc and 225Ac and the like.

Description

technical field [0001] The invention belongs to the field of medical radioactive diagnosis and treatment nuclides, in particular to a photonuclear reaction production based on bremsstrahlung and target substances of electron beams emitted by high-power electron accelerators 99 Methods and equipment for medical isotopes such as Mo. Background technique [0002] With the wide application of γ-camera and SPEC / CT, the imaging and diagnostic techniques of nuclear medicine, the tracer radiopharmaceuticals are also developing rapidly. The most commonly used and typical molybdenum-technetium generator ( 99 Mo- 99m Tc, hereinafter referred to as the cow). [0003] cow is 99 Mo, whose half-life is 66 hours, can cope with the separation from the place of production to the place of use 99m Decay consumption of Tc. 99m The γ-ray energy emitted by Tc is very low, and 140keV has little damage to the human body, and the imaging positioning is accurate. contain 99m There are as many ...

AI Technical Summary

Problems solved by technology

[0012] In order to solve the accelerator-based production in the existing technology 99 Mo's method has low yield, 100 The Mo sample target is difficult to process and will produce other Tc isotope impurities. The invention provides a method and equipment for producing medical isotopes based on a high-power electron accelerator. 100 Mo sample target using photonuclear reaction 100 Mo(γ,n) 99 Mo production 99 Mo, and realize automatic operation through a programmable robot system (hereinafter referred to as robot)

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