ion probe

ion probe

[′ī‚än ‚prōb]
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The other technique, referred to as direct-write IBL, uses a tightly focused beam of ions to form a scanned ion probe, with position and timing controlled by a pattern generator.
and Blusztajn, J., 2001, Tracing patterns of erosion and drainage in the Paleogene Himalaya through ion probe Pb isotope analysis of detrital K- feldspars in the Indus Molasse, India, Earth and Planetary Science Letters, 188, 475-491.
Dauphas and his associates spent three weeks searching for chromium 54-enriched nanoparticles with an ion probe at the California Institute of Technology.
A variety of techniques is now available for high spatial resolution isotopic analyses (ion probe, laser ablation; microsampling).
He then joined the Spectroanalysis Section of the National Bureau of Standards (now NIST), doing research in the theory and applications of electron and ion probe microanalysis.
Attempts to measure the onset of this elevated efflux during the initial application of hsp70 were frustrated by the interaction of hsp70 with the calcium-selective liquid membrane tipping the ion probe. The electrode is tipped with a 30 [mu]m column of calcium ionophore cocktail A (FLUKA) and the hsp70 must either insert into the lipophilic carrier or interfere with the ion-ophore itself.
An ion probe has two parts: a focused ion-beam source for sputtering ions from a small-volume sample, and a mass spectrometer for analyzing sputtered ions.
With the ion probe, researchers can search for the best-preserved section of the crystal.
The new measurements reveal that the concentration of water in the rocks is less than 50 parts per million--below the limit that could have been detected with less sensitive ion probes, notes coinvestigator Erik Hauri of the Carnegie Institution of Washington (D.C.).
Atomika manufactures ion probes for process diagnostics in the semiconductor and LED industries.