Alphabetical Staff Listing

Paul Gassman

Research Scientist, WR Wiley Environmental Molecular Sciences Laboratory, Chemistry & Physics of Complex Systems

P.O. Box 999, K8-88

Richland, WA 99352

USA

Send Email Work: (509) 371-6049 Fax: (509) 371-6139 http://emslbios.pnl.gov/id/gassman_pl Updated: July 14, 2006

Dual Assignment

WR Wiley Environmental Molecular Sciences Laboratory / Environmental Spectroscopy & Biogeochemistry Facility

Current Activities and Projects

Fourier transform infrared and Raman spectroscopies of soils, sediments, minerals, semiconductors, infrared glasses and thin films, diesel catalyts and diesel soot filters, and organic acids using a variety of reflectance, transmission, scattering and emission techniques.

Developing a database of fluorescence spectra of uranium minerals for use in characterizing vadose zone sediments contaminated with soluble or precipitated uranium.

Research Interests

Infrared reflectance spectroscopy of environmental contaminants on soils and sediments. Quantitative FTIR spectroscopy of liquids. In-situ and ex-situ characterization of diesel catalytic materials, focussing on the sulfur poisoning mechanism. Band gap measurements of CdZnTe using near infrared spectroscopy.

Past Experience

Most of my early work at Battelle focussed on radionuclide interactions with minerals in order to gain an improved understanding of the interfacial phenomena controlling radionuclide mobilities, particularly as organic chelate complexes.

Education