Quadrupoles in electron lens design

Quadrupoles in electron lens design

Coulomb Interactions in Particle Beams, Volume 223 in the Advances in Imaging and Electron Physics series, merges two long-running serials, Advances in Electronics and Electron Physics and Advances in Optical and Electron Microscopy. The series features articles on the physics of electron devices (e...

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Detalles Bibliográficos
Otros Autores: Hawkes, P. W., editor (editor), Hÿtch, Martin, editor
Formato: Libro electrónico
Idioma:Inglés
Publicado: London, England ; San Diego, California : Academic Press [2023]
Edición:First edition
Colección:Issn
Materias:
Quadrupoles.
Electromagnetic lenses.
Ver en Biblioteca Universitat Ramon Llull:https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009835416206719
Tabla de Contenidos:
  • Intro
  • Quadrupoles in Electron Lens Design
  • Copyright
  • Contents
  • Preface
  • Chapter One: Introduction
  • Chapter Two: Definitions, notation, and methods of analysis
  • 1. Equations of motion
  • 2. Cardinal elements
  • 2.1. Round lenses
  • 2.2. Quadrupole lenses
  • 2.2.1. Conjugate planes
  • 2.2.2. Principal planes
  • 3. Aberration coefficients: Round lenses
  • 3.1. Real aberrations (objective lenses)
  • 3.2. Asymptotic aberrations (lenses for which the object is virtual)
  • 3.3. Aberration coefficients: Quadrupoles
  • 3.4. Geometrical aberrations
  • 3.5. Chromatic aberrations
  • 3.6. Parasitic aberrations
  • 4. Fifth-order aberrations
  • Chapter Three: Quadrupole potential functions
  • 1. Calculation by analog and numerical methods
  • 1.1. Relaxation
  • 1.2. Analog methods
  • 2. Curve-fitting and models
  • 2.1. Best-fit curves
  • 2.2. Electrode shape and fifth-order effects
  • 2.3. Analytical models for which the equations of motion are soluble
  • 3. Note added in proof
  • Chapter Four: Quadrupole systems: Their suitability for specific tasks
  • 1. Quadrupole multiplets as corrector units
  • 1.1. Doublets
  • 1.2. Triplets
  • 1.3. Quadruplets
  • 2. Quadrupole multiplets as objective lenses or as probe-forming lenses
  • 3. Quadrupoles as projector lenses
  • 4. Formation of a line image and pseudo-stigmatic imagery
  • 5. Octopoles alone
  • 6. Chromatic correction
  • Chapter Five: Quadrupole data
  • 1. The single quadrupole
  • 1.1. Long quadrupoles: The rectangular model
  • 1.2. The short quadrupole: The bell-shaped model
  • 1.3. The short asymmetric quadrupole: the bell-shaped model
  • 1.4. The intermediate quadrupole: The modified rectangular model
  • 1.5. The short achromatic quadrupole
  • 2. The quadrupole doublet
  • 3. The quadrupole triplet
  • 4. The quadrupole quadruplet
  • 5. The symmetric quadruplet
  • 6. The antisymmetric quadruplet.
  • 6.1. Rectangular model, CDCD configuration
  • 6.2. Rectangular model, CCDD configuration
  • 6.3. The bell-shaped model
  • 6.4. The rectangular model: telescopic systems
  • 7. Other systems
  • 7.1. General comments
  • 7.2. Variational methods of minimizing aperture aberrations (Moses, 1968)
  • 8. Octopoles
  • 8.1. Individual octopoles
  • 8.2. Combined quadrupoles and octopoles
  • Nomenclature and Notation
  • 1. Nomenclature
  • 2. Notation
  • The shadow projection method of measuring aberration coefficients
  • References
  • Author index
  • Subject index.

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