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Chemistry

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Displaying 1276 - 1300 of 1924

Low-Level (Submicromole) Environmental 14 C Metrology

October 1, 2000
Author(s)
Lloyd A. Currie, J D. Kessler, J V. Marolf, A. P. McNichol, D R. Stuart, J C. Donoghue, D. J. Donahue, William Burr, D Biddulph
Accelerator Mass Spectrometry (AMS) measurements of environmental 14C have been employed during the past decade at the several micromole level (10's of ug carbon), but advanced research in the atmospheric and marine sciences demands still higher

Application of CW-CRDS to Monitor and Control Chemical Vapor Deposition

July 1, 2000
Author(s)
David S. Green, J P. Looney, G W. Rubloff
Continuous wave excitation cavity ring-down spectroscopy (CW-CRDS) is being evaluated for real time chemical sensing of volatile CVD byproducts (e.g. HF, H2O) and as a quantitative and robust metrology tool for advanced process control methodologies.
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