High-concentration Na<125>I solution production device

Abstract

The invention provides a high-concentration Na<125>I solution production device, including a rack, a gas pouring tank, a target opening device, a target making device, a reactor, a material tank, a vacuum pump, a pressure meter and a liquid nitrogen pump. The gas pouring tank, the target opening device, the target making device, the reactor, the material tank and the vacuum pump are all arranged on the rack and fixedly connected with the rack; the pressure meter is fixedly connected onto the gas pouring tank; the gas pouring tank is connected with the target opening device, the target making device, the reactor, the material tank, the vacuum pump and the pressure meter respectively; the liquid nitrogen pump is arranged below the rack, and connected with the target opening device, the target making device, the reactor and the material tank respectively. The production device provided by the invention has the functions of target opening, target making, storage and cooling decay of activated xenon gas, capture of <125>I and preparation of Na<125>I solution, and can online make the recovered xenon into the target for reutilization. The device provided by the invention is compact and small and convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of radioisotope preparation, in particular to a high-concentration Na 125 I solution production device. Background technique [0002] Seed sources, radioimmune drugs and isotope tracers made of radioactive iodine-125 are widely used in the fields of modern nuclear medicine clinical diagnosis and treatment, oil logging and other fields, which mainly come from the radiation activation of reactors. 124 Xe. At present, independent targets (enriched 124 Xe target) irradiation production method to obtain sodium iodide (Na 125 I) solution, the brief process of this production is: will concentrate 124 Inject Xe into a quartz glass container or metal container and seal it, put it in the reactor for 1-3 days of irradiation, take out the target and open it in the hot chamber, transfer the irradiated xenon gas to a clean container, seal it and cool it for about 2 weeks, and then recover the xenon gas , and then a...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the Na in the prior art 125 The operating sites of the target making, target opening, xenon gas pouring, storage and cooling, distillation and concentration of the I solution production device are scattered and require a large operating space. There are many links for transferring radioactive materials between different processing sites, and the work efficiency is low. , Large leakage of target material, prone to radioactive pollution, lack of target making equipment, personnel and environment, can achieve high concentration Na 125 I solution is efficiently produced, and to achieve the purpose of controlling the risk of radioactive pollution and tail gas "zero" discharge, the invention provides a high-concentration Na 125 I solution production device

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