Xenon target preparation device for reactor irradiation production of I-125 (iodine-125)

Abstract

The invention provides a xenon target preparation device for reactor irradiation production of I-125 (iodine-125). The xenon target preparation device for the reactor irradiation production of the I-125 comprises a gas backflow tank, a target opening device, a raw material tank, a storage device, a filling weld device and a vacuum pump, which are arranged on a rack and fixedly connected with the rack, wherein a pressure gage is fixed on the gas backflow tank, the gas backflow tank is connected with the target opening device, the raw material tank, the storage device, the filling weld device, the vacuum pump and the pressure gage, a liquid nitrogen pump is arranged below the rack, the liquid nitrogen pump is connected with the target opening device, the filling weld device and the storage device, the filling weld device is connected with a fusion welding power source, and the target opening device, the filling weld device, the vacuum pump, the liquid nitrogen pump and the fusion welding power source are respectively connected with a controller in electrical mode. The xenon target preparation device for the reactor irradiation production of the I-125 has target opening and welding functions, not only can use raw material xenon gas to prepare different packing volumes and specifications of xenon targets, but also can be integrated with a production system of the I-125, and repeatedly manufactures recycled 124Xe (xenon) into the targets on line so as to reuse the 124Xe. The xenon target preparation device for the reactor irradiation production of the I-125 is compact and small, and convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of radioisotope preparation, and in particular relates to a xenon target preparation device for producing I-125 by reactor irradiation. Background technique [0002] Radioactive iodine-125, which is widely used in clinical diagnosis and treatment of modern nuclear medicine, oil logging and other fields, mainly comes from reactor irradiation 124 Generated after Xe 125 The decay of Xe. Due to the natural xenon 124 The abundance of Xe is only 0.096%, in order to increase the yield of I-125 often need to use concentrated 124 Xe gas is used as the target material, while the concentrated 124 Xe gas is very expensive, especially if the abundance is higher than 90% 124 Xe. [0003] There are mainly two kinds of packaging containers for xenon targets used in the production of I-125 by irradiation, one is quartz glass bottles, and the other is metal containers such as aluminum cans, titanium cans, and stainless...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of the prior art xenon target preparation devices, such as target canister filling with xenon, target canister sealing, recovery of xenon filling and other processes, the operating places are scattered and the required operating space is relatively large, and radioactive materials are transferred between different processing places. There are many links, low work efficiency, large leakage of target material, and radioactive pollution, which is prone to deficiencies in target making devices, personnel and the environment. The present invention provides a xenon target preparation device for reactor irradiation production of I-125

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