The enrichment of uranium isotopes by redox ion exchange chromatography has been advanced recentlyr. For commercial application of the chemical method, one of the basic factors is that the exchange rate between uranou...The enrichment of uranium isotopes by redox ion exchange chromatography has been advanced recentlyr. For commercial application of the chemical method, one of the basic factors is that the exchange rate between uranous and uranyl ions must be high enough, therefore, it becomes an important research field on uranium isotope enrichment by ion exchange.展开更多
The previous note reported the effect of acidity and temperature on uranous-uranyl isotope exchange reaction in the sulphuric solution. It is found that the half-life of the isotope reaction t<sub>1/2</sub>...The previous note reported the effect of acidity and temperature on uranous-uranyl isotope exchange reaction in the sulphuric solution. It is found that the half-life of the isotope reaction t<sub>1/2</sub> can be made to be around 10s, when the acidity and the tempera-展开更多
The most neutron-deficient isotopes215,216 U were produced in the complete-fusion reaction ^(180)W(^(40)Ar, 4-5n)^(215,216) U. Evaporation residues recoiled from the target were separated in-flight from the primary be...The most neutron-deficient isotopes215,216 U were produced in the complete-fusion reaction ^(180)W(^(40)Ar, 4-5n)^(215,216) U. Evaporation residues recoiled from the target were separated in-flight from the primary beam by the gas-filled recoil separator SHANS and subsequently identified on the basis of correlated α-decay chains. Two α-decaying states were identified in ^(216)U, one for the ground state and the other for the isomeric state with 8+(πh_(9/2)πf_(7/2)) configuration. The α-decay properties for ^(215,216)U and the systematics of 8+isomeric state in N = 124, 126 isotones were investigated.展开更多
基金Project supported by the National Natural Science Foundation of China.
文摘The enrichment of uranium isotopes by redox ion exchange chromatography has been advanced recentlyr. For commercial application of the chemical method, one of the basic factors is that the exchange rate between uranous and uranyl ions must be high enough, therefore, it becomes an important research field on uranium isotope enrichment by ion exchange.
基金Project supported by the National Natural Science Foundation of China
文摘The previous note reported the effect of acidity and temperature on uranous-uranyl isotope exchange reaction in the sulphuric solution. It is found that the half-life of the isotope reaction t<sub>1/2</sub> can be made to be around 10s, when the acidity and the tempera-
基金National Basic Research Program of China(2013CB834403)National Natural Science Foundation of China(11475226,11405225,11305230,11120101005,11405243,11205208)
文摘The most neutron-deficient isotopes215,216 U were produced in the complete-fusion reaction ^(180)W(^(40)Ar, 4-5n)^(215,216) U. Evaporation residues recoiled from the target were separated in-flight from the primary beam by the gas-filled recoil separator SHANS and subsequently identified on the basis of correlated α-decay chains. Two α-decaying states were identified in ^(216)U, one for the ground state and the other for the isomeric state with 8+(πh_(9/2)πf_(7/2)) configuration. The α-decay properties for ^(215,216)U and the systematics of 8+isomeric state in N = 124, 126 isotones were investigated.
