Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizens ZKSen, Flying Noodle Master, Xiao Zhanche's clue delivery! CTOnews.com news on October 26, CNNC announced that recently, the Institute of Nuclear Science and Technology of CNNC has obtained 99% molybdenum isotopes of kilogram level for the first time through independent research and development. This is the first time that China has achieved a major breakthrough in the independent supply of molybdenum isotope key materials, changing the situation that molybdenum isotopes have been completely dependent on imports for a long time. It indicates that China has reached the leading level in the world in the field of high abundance stable isotopes and has become one of the few countries in the world that can obtain molybdenum isotopes in batches.

It is reported that molybdenum (Mo) isotopes have a wide application prospect in nuclear medicine, basic physics, advanced nuclear fuel and other research fields.

In the field of nuclear medicine, high abundance Mo-98 and Mo-100 isotopes are pre-nuclides for the production of radioisotope Mo-99, which further decays to technetium-99m, which is the most widely used diagnostic radionuclides in nuclear medicine.

In the field of basic physics, high abundance Mo-100 isotopes are applied to neutrino-free double β decay experiments, which is an important frontier topic in international particle physics and nuclear physics research. it is of great significance to explore the basic properties of neutrinos and reveal the evolution of the universe.

In the field of advanced nuclear fuel research, because the melting point of depleted molybdenum-95 is 760 ℃ higher than that of the mainstream nuclear fuel cladding material-zirconium, it can produce nuclear fuel assemblies with more high temperature resistance, greatly improve the safety performance of nuclear fuel assemblies, and provide guarantee for the safe and green development of nuclear power industry.

In order to meet the demand of the domestic market and change the situation of long-term dependence on imports and insufficient supply of molybdenum isotope materials, the scientific research team of CNNC, based on nearly 30 years of continuous research and development experience, boldly innovated and broke through the key technologies in the process of isotope separation. Molybdenum-100 isotope products with a kilogram isotope abundance of 99% were obtained for the first time, filling the gap in the domestic technical field.

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