Overview

This book introduces readers to the physics governing electron emission under high voltages and temperatures, and highlights recent modeling and numerical developments for describing these phenomena.  It begins with a brief introduction, presenting several applications that have driven electron emission research in the last few decades. The authors summarize the most relevant theories including the physics of thermo-field electron emission and the main characteristic parameters. Based on these theories, they subsequently describe numerical multi-physics models and discuss the main findings on the effect of space charges, emitter geometry, pulse duration, etc. Beyond the well-known photoelectric effect, the book reviews recent advanced theories on photon-metal interaction. Distinct phenomena occur when picosecond and femtosecond lasers are used to irradiate a surface. Their consequences on metal electron dynamics and heating are presented and discussed, leading to various emission regimes – in and out of equilibrium. In closing, the book reviews the effects of electron emission on high-voltage operation in vacuum, especially breakdown and conditioning, as the most common examples.  The book offers a uniquely valuable resource for graduate and PhD students whose work involves electron emission, high-voltage holding, laser irradiation of surfaces, vacuum or discharge breakdown, but also for academic researchers and professionals in the field of accelerators and solid state physics with an interest in this highly topical area.

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9783030984212

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Benjamin SEZNEC is an associated researcher at Laboratory of Physics of Gas and Plasma – LPGP. He defended his Ph.D. in 2017 on electron emission under high voltage and high energy electron beam effect on solid matter. Professor Tiberiu MINEA is the head of LPGP since 2015. His research fields are plasma modeling and simulations, cold plasma for high energy, electron emission, plasma diagnostics and plasma processing, coatings. Philippe TESTE is a CNRS senior scientist with GeePS - Group of electrical engineering of Paris-Saclay. He has major contributions in the modeling of electron emission, arcs and breakdown studies. Professor Philippe DESSANTE is with GeePS. He performed research in the modeling of high voltage electrical breakdown, arc and technological devices. Gilles MAYNARD is the former director of LPGP, research director at CNRS. His outstanding research focused on the modeling of the high-energy particle beam in interaction with plasma and laser-plasma acceleration.

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