You are visiting the web site of the EPSCI Program at the U.S. Dept. of Energy's Ames Laboratory, Ames, IA
AGRONOMY/SOIL SCIENCE
Expertise: Current focus is in soil mineralogy, especially investigations of the formation and transport of colloidal organomineral complexes, their impact on soil morphology, and their behavior in ecosystems.
CHEMISTRY
Expertise: FTIR spectroscopy, photoacoustic spectroscopy, mass spectrometry, nonlinear optical spectroscopy.
Expertise: Development of optical and mass spectrometric diagnostics to probe analytical composition and speciation, dynamical processes, state selective reaction mechanisms, and reaction product distributions of energetic radicals and ionic species present in flames, discharges, plasmas, and atmospheric reactions.
Expertise: Trace elemental, isotopic, and organic analysis. Ionization processes for mass spectrometry. Fundamental studies of inductively coupled plasmas. New techniques for mass separation and detection. Sample introduction and nebulization for analytical atomic spectroscopy. Elemental speciation.
Expertise: Photoacoustic spectroscopy, on-line and in-field application of spectroscopy, development of new spectroscopic methods and instrumentation.
Expertise: Analytical applications of high-resolution laser spectroscopy, electrothermal vaporization laser atomic absorption and fluorescence spectrometry, optogalvanic spectroscopy, diode laser spectroscopy, multiphoton ionization mass spectrometry, laser decontamination of metals, piezoelectric mass sensors.
CHEMICAL ENGINEERING
Interests/Expertise: Investigating the effect of bulk and surface micro and nanostructures of polymers on its transport properties. These fundamental investigations are targeted towards specific applications including drug delivery, peripheral nerve and mammary tissue regeneration, membrane separations and solvent removal from semicrystalline polymers.
METALLURGY
Expertise (lay level): Our research group has developed a lead-free solder alloy, and nickel/metal hydride rechargeable batteries, which are intended to discontinue our dependence on toxic lead metal. We are investigating aluminum alloy composites to make them stronger and lighter. We are also developing improved processing methods for magnetic materials to use in reducing pollution from automobile exhausts.
Expertise (technical level): Powder metallurgy; rapid solidification; development of high pressure gas atomization for production of fine metal powders; development of centrifugal atomization into a rotating quench bath for production of large spherical powders of rare-earth intermetallic compounds for cryocoolers and magnetic refrigeration; fine powder processing for fabrication of structural components, permanent magnets, and electronic materials.
PHYSICS/APPLIED PHYSICS
Interests/Expertise: Nondestructive evaluation techniques using x-ray and neutron radiography methods. Modeling of x-ray and neutron image formation process.
Interests/Expertise: Developing x-ray techniques for material characterization and inspection, including transmission and backscatter measurements. Developing new x-ray detectors for use in x-ray inspection. Modeling x-ray interactions with matter and x-ray image formation. Developing Probability of Detection (POD) formalism for x-ray NDE.
Expertise: Transient infrared spectroscopy and photoacoustic spectroscopy and microscopy including on-line and laboratory instrumentation and analytical methods for materials, energy, and environmental applications.
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Last Modified: 1 August 2003 by dave eckels
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