نتایج جستجو برای: spontaneous fission

تعداد نتایج: 129113  

Journal: :The European Physical Journal A 2022

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...

خلیل خلیلی, مرتضی, سهیلی, سعید,

 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...

Journal: :Physical Review C 2021

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. ...

2012
A. G. Smith J. L. Durell W. R. Phillips W. Urban P. Sarriguren I. Ahmad

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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