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Zbigniew Sosin

Publications and source records attributed to Zbigniew Sosin.

3 recordsLinked to original sources

Alpha Cluster Model of Atomic Nuclei

Description of a nuclear system in its ground state and at low excitations based on the equation of state (EoS) around normal density is presented. In the expansion of the EoS around the saturation point additional spin polarization terms are taken into account. These terms, together with the standard symmetry term, are responsible for appearance of the $α$-like clusters in the ground state configurations of the N=Z even-even nuclei. At the nuclear surface these clusters can be identified as alpha particles. A correction for the surface effects is introduced for atomic nuclei. Taking into account an additional interaction between clusters the binding energies and sizes of the considered nuclei are very accurately described. The limits of the EoS parameters are established from the properties of the $α$, $^{3}$He and $t$ particles.

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Description of the plasma delay effect in silicon detectors

A new method of modeling of the current signal induced by charged particle in silicon detectors is presented. The approach is based on the Ramo-Shockley theorem for which the charge carrier velocities are determined by taking into account not only the external electric field generated by the electrodes, but also the Coulomb interaction between the electron and hole clouds as well as their diffusion.

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