This book presents the foundations of nuclear physics, covering several themes that range from subatomic particles to stars. Also described in this book are experimental facts relating to the discovery of the electron, positron, proton, neutron and neutrino. The general properties of nuclei and the various nuclear de-excitation processes based on the nucleon layer model are studied in greater depth. This book addresses the conservation laws of angular momentum and parity, the multipolar transition probabilities E and M, gamma de-excitation, internal conversion and nucleon emission de-excitation processes. The fundamental properties of and disintegrations, electron capture, radioactive filiations, and Bateman equations are also examined. Nuclear Physics 1 is intended for high school physics teachers, students, research teachers and science historians specializing in nuclear physics.

Quantum mechanics is the foundation of modern technology, due to its innumerable applications in physics, chemistry and even biology. This second volume studies Schroedinger s equation and its applications in the study of wells, steps and potential barriers. It examines the properties of orthonormal bases in the space of square-summable wave functions and Dirac notations in the space of states. This book has a special focus on the notions of the linear operators, the Hermitian operators, observables, Hermitian conjugation, commutators and the representation of kets, bras and operators in the space of states. The eigenvalue equation, the characteristic equation and the evolution equation of the mean value of an observable are introduced. The book goes on to investigate the study of conservative systems through the time evolution operator and Ehrenfest s theorem. Finally, this second volume is completed by the introduction of the notions of quantum wire, quantum wells of semiconductor materials and quantum dots in the appendices.

The reader will find in this collection a clear exposition of the method of the Screen Constant by Nuclear Charge Unit which can be applied in a simple and immediate way to many fields of Physics in relation to atomic spectroscopy.