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