Electrical properties Plasma processes Pulsed electro acoustic method Electrical engineering Electrical ageing Charge trapping Electronic irradiation Accumulation characteristics Optimization PEA Nanostructured dielectrics Acoustic wave propagation Bipolar charge transport model SiO2 Space charge Electrical conductivity Polymers Proteins Polarization Modeling Polypropylene Polymeric insulation Polarity reversal Epoxy resin Permittivity Silver nanoparticles Dielectric properties Dielectric charging Silver Ageing Dielectric materials AFM Luminescence AgNPs EFM Electric field distribution Cathodoluminescence XLPE Radiation effects Insulating polymers Cumyl alcohol Electric field Dielectric Interfacial charge LIMM Ac electric field Electron-beam irradiation Cable LDPE Silicon compounds Electroluminescence Partial discharges Insulation Thin films Conductivity DC stress Charge transport Breakdown Charge d'espace DC conductivity Atomic force microscopy HVDC cable Electrostatics FTIR Conduction current Plasma process Current measurement E-Beam Electromechanical stress Mechanical properties PTFE C-AFM Cross-linked polyethylene Transport Dielectric material Polymer Dielectric films Fluid model Electron beams Electrical insulation Power cables Polyethylene Electrodes FLIMM KPFM Polyimide Dielectric strength Electron beam Aluminum oxide Electric potential Electron emission Field distribution Thermal aging Charge transport model Cross-linking by-products Rotating machines Dielectrics Charge injection HVDC Charge measurement