Ion sources

Ion sources

Devices which produce positive or negative electrically charged atoms or molecules.

In general, ion sources fall into three major categories: those designed for positive-ion generation, those for negative-ion generation, and a highly specialized type of source designed to produce a polarized ion beam. The positive-ion source category may further be subdivided into sources specifically designed to generate singly charged ions and those designed to produce very highly charged ions.

Ion sources have acquired a wide variety of applications. They are used in a variety of different types of accelerators for nuclear research; have application in the field of fusion research; and are used for ion implantation, in isotope separators, in ion microprobes, as a means of rocket propulsion, in mass spectrometers, and for ion milling. See Nuclear fusion, Particle accelerator

References in periodicals archive ?
The subject of this contract is two ion sources that extend the capabilities of the existing TOF-SIMS5 device.
Traditional ion sources act like hammers, pulverizing samples in ways that can prevent scientists from seeing a true picture of the material.
Among the topics are theoretical insights into cluster secondary ion mass spectrometry (cluster SIMS), surface analysis of organic materials with polyatomic primary ion sources, three-dimensional imaging with cluster ion beams, and cluster SIMS for the depth profiling of semiconductors and metals.
Typical applications include injectors used in a gas chromatograph, ion sources used in mass spectrometry.
US 8,211,411 B2--an oral care composition that contains a fused silica abrasive and an orally-acceptable carrier selected from fluoride ion sources, antibacterial agents, anticalculus agents, buffers, other abrasive materials, peroxide sources, alkali metal bicarbonate, salts, thickening materials, humectants, water, surfactants, titanium dioxide, flavor system, sweetening agents, cooling agents, xylitol, coloring agents and mixtures thereof.
The neutral beam power will be increased primarily by changing the magnetic configuration of the ion sources.
Int'l Workshop on ECR Ion Sources (16th: 2004: Berkeley, CA) Ed.
The company has accomplished this by using state-of the-art ion sources in its ion-assisted vapor deposition process.
These mirrors also feature a damage threshold of 1kW/cm2 continuous wave, making them ideal for use with Argon Ion sources.
These biases arise from memory effects in ion sources and affect the reliability and comparability of carbon-13 and oxygen-18 measurements used in studies requiring high interlaboratory reproducibility, including research relevant to climate change.
The combination El/FI/FD ion source offers both molecular weight information (field ionization and field desorption: Fl and FD) and classical library-searchable (electron ionization: El) mass spectra without having to change ion sources.