Preface.- Part I: Photon Absorption.- Main points of the theory.- Photon Absorption - Results of Calculations.- Part II: Electron Scattering.- Main points of the theory.- Electron Scattering - Results of Calculations.- Part III: Vacancies Decay.- Main points of theory.- Vacancy decay -results of calculations.- Conclusion and Perspectives.- Part IV: Addendum.- Photon absorption - results of calculations.- Electron scattering - results of calculations...