232Th decay chain / A2110M Nuclear level density and structure A2320L Nuclear gamma transitions and level energies A2790 Properties of nuclei with 220 les AThe intensities of gamma rays of energy below 1000 keV in the 232Th decay chain have been measured and are reported....
The energy scale and resolution are obtained with the 232Th decay chain γ-lines in the spectrum. A resolution of σ=1.48 keV was determined at 643.5 keV with an estimated uncertainty of 10% which also accounts for slightly non-Gaussian peak shapes due to pile-up from the high rate ...
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The decay of 232Th has been studied using high-resolution Ge and Si surface barrier detectors. Th was radiochemically purified from its daughter products for alpha - and gamma -spectroscopic studies. Two gamma -rays with energies 63.8 and 140.8 keV were assigned to the decay of 232Th. The ...
The production of delayed neutrons from fission of 238U, 232Th and 209Bi with 20–34 MeV τ- and α-particles has been studied. For 238U and 232Th, delayed-neutron decay curves were analysed into 7 components, three of which correspond to the particular precursors 87Br, 88Br and 137I. ...
The behavior of 232Th and the 238U decay chain nuclides during magma formation and volcanism Concentrations of the members of the 238U decay chain and 232Th were determined in volcanic rocks from convergent plate margins, intraplate volcanoes and oceanic spreading centers. Contemporary and historical ...
Th(Thorium):Z=90，原子量＝232；密度＝11.7；熔点＝1750℃，沸点＝4000℃，价态：+4 U(Uranium):Z=92，原子量＝238；密度＝18.7；熔点＝1132℃，沸点＝3818℃，价态：＋2,+3,+4,+5,+6;Pb(Lead):Z=82,原子量＝207.2；密度＝11.34；熔点＝327.5，沸点＝1740，价态：+2,+4 各类岩石中U,Th...
A series of experimental and theoretical investigations of time decay features displayed by heavy nuclei having two types of excited states, those in the first and those in the second potential well, are surveyed. Some problems concerning the effect of nuclear viscosity on the probability of populat...
In [336] it was shown that, despite the background radio-luminescence originating from the 233U decay chain, there is a chance of detecting the isomeric decay. In case of a non-observation, an upper limit for the isomer's radiative decay branch could be obtained. So far no result has ...
The fission yield data in the 14 MeV energy neutron induced fission of^(238)U play an important role in decay heat calculations and generation-Ⅳ reactor d... 杨宪林,兰长林,聂阳波,... - 《中国物理c:英文版》 被引量: 0发表: 2023年 Fission product yield distribution in the 12, 14, and...