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Tim Elam
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| Title |
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Senior Physicist
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| Department |
Ocean Acoustics (OA)
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| Education |
Ph.D. Physics 1979, University of Maryland
M.S. Physics 1977, University of Maryland
B.S. Physics 1973, Mississippi State University
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| Email |
wtelam@apl.washington.edu
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| Phone |
206-685-3092
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X-ray Spectroscopy
Dr. Elam's main research interest is X-ray spectroscopy. He has worked in the areas of X-ray absorption, emission, fluorescence, and non-resonant inelastic scattering. His present efforts focus on using X-ray fluorescence in difficult environments. He has built an X-ray fluorescence spectrometer (XRFS) to measure heavy metal contaminants in soils and sediments that is directly pushed via cone penetrometery without drilling. His latest project was a borehole XRFS for use in the Mars Subsurface Access Program.
Dr. Elam also models acoustic propagation in an ocean waveguide with rough boundaries. Typical rough boundaries are a surface with wind-driven waves and a bottom with ripple. Both the parabolic equation method and a mode-based transport theory are used for the calculations. He is the manager of a new project to investigate superresolution methods for sonar and radar.
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