TG Terms

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(For old terms, see Orange Book Chapter 12)


Types of ions

Basic Definitions

Processes & Techniques

Ion Formation

Adiabatic Ionization

Appearance Energy

Associative Ionization

Atmospheric Pressure Ionization

Atmospheric Pressure Chemical Ionization

Atmospheric Pressure Photo-Ionization


Charge Exchange (Charge Transfer) Ionization


Chemical Ionization


Desorption/Ionization On Silicon, DIOS

Dissociative Ionization

Electron Affinity

Electron Energy

Electron Ionization

Electrospray Ionization

Fast Atom Bombardment

Field Desorption

Field Ionization

Ion-Pair Formation

Ion Spray

Ionic Dissociation

Ionization Cross Section

Ionization Efficiency

Ionization Energy

Laser Desorption/Ionization

Laser Ionization

Liquid Matrix

Liquid Secondary Ion

Matrix-Assisted Laser Desorption/Ionization


Multi-Photon Ionization


Negative Ion Chemical Ionization

Penning Ionization


Plasma Desorption (Fission Fragment) Ionization

Pre-Ionization State

Proton Affinity

Resonance-Enhanced Multiphoton Ionization

Secondary Ion

Soft Ionization

Spark Ionization

Surface-Assisted Laser Desorption/Ionization

Surface Ionization

Thermal Ionization

Vertical Ionization

Ion Reactions

Association Reaction



Blackbody Infrared Radiative Dissociation

Charge Exchange Reaction

Charge-Induced Fragmentation

Charge Inversion Reaction

Charge Permutation Reaction

Charge-Remote Fragmentation

Charge Stripping Reaction

Charge Transfer Reaction

Collisional Activation, Collisionally Activated Dissociation

Collisional Excitation

Collision-Induced Dissociation

Collision Gas

Elastic Collision

Elastic Scattering

Electron Capture Dissociation

Heterolysis (Heterolytic Cleavage)

High-Energy Collision-Induced Dissociation

Homolysis (Homolytic Cleavage)

Hydrogen/Deuterium Exchange

Impact Parameter

I-Cleavage (Inductive Cleavage)

Inelastic Collision

Inelastic Scattering

Infrared Multiphoton Dissociation

Interaction Distance

Ion Energy Loss Spectra

Ion/Molecule Reaction

Ion/Neutral Complex

Ion/Neutral Species Reaction

Ion/Neutral Species Exchange Reaction

Ionizing Collision

Kinetic Method

Low-Energy Collision-Induced Dissociation

Mclafferty Rearrangement

Momentum Transfer Collision

Multiple Collision

Partial Charge Exchange Reaction

Partial Charge Transfer Reaction


Post-Source Decay

Quasi-Equilibrium Theory

Superelastic Collision

Sustained Off-Resonance Irradiation

Unimolecular Dissociation

m/z Separation

Accelerating Voltage

Cyclotron Motion

Delayed Extraction

Einzel Lens

Electric Field Strength

Field Free Region

First Stability Region

Fringing Field

Ion Gate (Mass Gate)

Kinetic Energy

Kinetic Energy Analyzer

Kinetic Energy Release

Magnetic Deflection

Magnetic Flux Density

Magnetron Motion

Mass Analyzed Ion Kinetic Energy Spectrometry, MIKES

Mass Limit

Mass Range

Mass Resolution

Resolving Power (Mass)

Mass Selective Axial Ejection

Mass Selective Instability

Mathieu Equation

Momentum Analyzer

Orthogonal Extraction

Quadrupole Field


Reflectron, Curved Field

Reflectron, Gridless

Reflectron, Quadratic Field

Resonance Ion Ejection

Space Charge Effect

Stability Diagram

Static Field

Time Lag Focusing



Array Detector (PATRIC)

Channel Electron Particle Multiplier

Dynode, Continuous

Dynode, Conversion

Daly Detector

Detector Gain

Dynode, Discrete

Ion-To-Photon Detector

Photoelectric Effect

Photographic Plate Recording

Postacceleration Detector

Secondary Electron Emission

Secondary Ion Emission


Total Ion Current


Ion Sources

Sample introduction

M/z separation methods

Sequential m/z separation


Data Processing