Advances in Imaging and Electron Physics merges two long-running serials-Advances in Electronics and Electron Physics and Advances in Optical and Electron Microscopy. This series features extended articles on the physics of electron devices (especially semiconductor devices), particle optics at high and low energies, microlithography, image science and digital image processing, electromagnetic wave propagation, electron microscopy, and the computing methods used in all these domains.This thematic volume is on the topic of "Field-emission Source Mechanisms" and is authored by Kevin Jensen, Naval Research Laboratory, Washington, DC.

I. FIELD AND THERMIONIC EMISSION FUNDAMENTALSA. A Note On UnitsB. Free Electron GasC. Nearly Free Electron GasD. The Surface Barrier to Electron EmissionE. The Image Charge ApproximationII. THERMAL AND FIELD EMISSIONA. Current DensityB. Exactly Solvable ModelsC. WKB "Area Under the Curve? ModelsD. Numerical MethodsE. The Thermal and Field Emission EquationF. The Revised FN-RLD Equation and the inference of Work Functionfrom experimental dataG. Recent Revisions of the Standard Thermal an Field ModelsH. The General Thermal-Field EquationI. Thermal EmittanceIII. PHOTOEMISSIONA. BackgroundB. Quantum EfficiencyC. The Probability of emissionD. Reflection and Penetration DepthE. ConductivityF. Scattering RatesG. Scattering factorH. Temperature of a Laser-illuminated SurfaceI. Numerical Solution of the Coupled Thermal EquationsJ. Revisions to the Modified Fowler Dubridge Model: Quantum EffectsK. Quantum Efficiency Revisited: A Moments-based ApproachL. The Quantum Efficiency of Bare MetalsM. The Emittance and Brightness of PhotocathodesIV. LOW WORK FUNCTION COATINGS AND ENHANCED EMISSIONA. Some HistoryB. A Simple Model of a Low Work Function CoatingC. A Less Simple Model of the Low Work Function CoatingD. The (Modified) Gyftopoulos-Levine Model of Work FunctionReductionE. Comparison of the Modified Gyftopoulos-Levine Model toThermionic DataF. Comparison of the Modified Gyftopoulos-Levine Model toPhotoemission DataV. APPENDICESA. Integrals related to Fermi-Dirac and Bose-Einstein StatisticsB. The Riemann Zeta function