نتایج جستجو برای: spontaneous fission
تعداد نتایج: 129113 فیلتر نتایج به سال:
Potential energy surfaces of even–even superheavy nuclei are evaluated within the macroscopic-microscopic approximation. A very rapidly converging analytical Fourier-type shape parametrization is used to describe nuclear shapes throughout periodic table, including those fissioning nuclei. The Lublin Strasbourg Drop and another effective liquid-drop type mass formula determine macroscopic part e...
The recent investigations show that the size and mass number of the target nucleus in the heavy-ion fission reactions are very important for the angular distribution of fission fragments. In this work, we consider the behavior of fission fragment angular anisotropies within the standard saddle-point statistical model for the 168O, 188O, 199F, 2412Mg, 2814Si, 32 16 S+20882Pb fission reaction sy...
Background: Microscopic description of spontaneous fission is one the most challenging subjects in nuclear physics. It necessary to evaluate collective potential and inertia along a path for quantum tunneling or low-energy fission. In past studies dynamics based on energy density functional (EDF) theory, has been evaluated with cranking approximation, which neglects dynamical residual effects. ...
The EUROGAM-2 array has been used to study γ rays emitted following the spontaneous fission of a 248Cm source. Analysis of Doppler-broadened lineshapes corresponding to transitions from excited rotational states in neutron-rich Sr, Zr, Mo, Ru, and Pd fission fragments has enabled measurements of state lifetimes in these nuclei at nuclear spins of I ∼ 10. Extracted transition quadrupole moments ...
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