Education

1990  Ph.D. Physical Chemistry, University of California Los Angeles, CA  USA

1987  M.S., Physical Chemistry, University of California Los Angeles, CA  USA

1983  B.S., Chemistry, University of California Riverside, CA  USA

Professional Positions

Present-2000:  Senior Staff Scientist and Principal Investigator Project Leader, ALS-MES Phase I Beamline Facility Chemical Sciences Division, The Glenn T. Seaborg Center, LBNL.

Recent Publications

G. K. Marasinghe, M. Karabulut, C. S. Ray, D. E. Day, C. H. Booth, P. G. Allen, J. J. Bucher, N. M. Edelstein, and D. K. Shuh, "Redox Characteristics and Structural Properties of Iron Phosphate Glasses:  A Potential Host Matrix for Vitrifying High Level Nuclear Waste," Ceramic Transactions 87, 261-270 (1998).   LBNL‑41426

P. W. Durbin, B. Kullgren, J. Xu, K. N. Raymond, P. G. Allen, J. J. Bucher, N. M. Edelstein, and D. K. Shuh, "Chelation of ²³⁷Neptunium In Vivo by Multidentate Catecholate and Hydroxypyridinonate Ligands," Health Physics 75, 34-50 (1998).   LBNL‑40452

M. A. Denecke, T. Reich, M. Bubner, S. Pompe, K. H. Heise, H. Nitsche, P. G. Allen, J. J. Bucher, N. M. Edelstein, and D. K. Shuh, "Determination of Structural Parameters of Uranyl Ions Complexed with Organic Acids Using EXAFS," J. Alloys and Compounds 271/273, 123-127 (1998).   LBNL‑43403

M. A. Denecke, T. Reich, S. Pompe, M. Bubner, K. H. Heise, H. Nitsche, P. G. Allen, J. J. Bucher, N. M. Edelstein, D. K. Shuh, and K. R. Czerwinski, "EXAFS Investigations of the Interaction of Humic Acids and Model Compounds with Uranyl Cations in Solid Complexes," Radiochim. Acta 82, 103-108 (1998).   LBNL-46198

T. Reich, H. Moll, T. Arnold, M. A. Denecke, C. Hennig, G. Geipel, G. Bernhard, H. Nitsche, P. G. Allen, J. J. Bucher, N. M. Edelstein, and D. K. Shuh, "An EXAFS Study of Uranium(VI) Sorption Onto Silica Gel and Ferrihydrite," J. Electron Spectros. 96, 237-243 (1998).   LBNL‑46193

W. W. Lukens, P. G. Allen, J. J. Bucher, N. M. Edelstein, E. A. Hudson, N. Kaltsoyannis, T. Reich, D. K. Shuh, and R. A. Andersen, "Structures of Substituted Cyclopentadienyl Uranium (III) Dimers and Related Uranium Metallocenes Deduced by EXAFS," Organometallics 18, 1253-1258 (1999).  LBNL‑41361

K. Marasinghe, M. Karabulut, C. S. Ray, D. E. Day, P. G. Allen, J. J. Bucher, N. M. Edelstein, D. K. Shuh, Y. Badyl, M. L. Saboungi, M. Grimsditch, S. Shastri, and D. Heaffner, "Effects of Nuclear Waste Components on Redox Equilibria, Structural Features, and Crystallization Characteristics of Iron Phosphate Glasses," Ceramic Transactions 93, 195-202 (1999).   LBNL‑42823

B. C. Holloway, O. Kraft, D. Shuh, M. Kelly, W. D. Nix, P. Pianetta, and S. Hagström, "Interpretation of X-ray Photoelectron Spectra of Elastic Amorphous Carbon Nitride Thin Films," Appl. Phys. Lett. 74, 3290-3292 (1999).   LBNL‑42878

C. H. Booth, P. G. Allen, J. J. Bucher, N. M. Edelstein, D. K. Shuh, G. K. Marasinghe, M. Karabulut, C. S. Ray, and D. E. Day, "Oxygen and Phosphorus Coordination Around Iron in Iron-Phosphate Glasses with UO₂ or Na₂O and Crystalline Ferric Ferrous Pyrophosphate," J. Mater. Res. 14, 2628-2639 (1999).  LBNL‑42204

S. R. Wasserman, P. G. Allen, J. J. Bucher, N. M. Edelstein, and D. K. Shuh, "EXAFS and Principal Component Analysis: A New Shell Game," J. Synch. Rad. 6, 284-286 (1999).   LBNL‑46175

L. Fabris, P. G. Allen, J. J. Bucher, D. A. Landis, N. W. Madden, and D. K. Shuh, "A Fast Zero Dead-time Single Channel Analyzer for Nuclear Spectroscopy Applications," IEEE Trans. Nucl. Sci. 46, 417-419 (1999).   LBNL‑41682

E. A. Hudson, L. J. Terminello, B. E. Vianni, M. A. Denecke, T. Reich, P. G. Allen, J. J. Bucher, D. K. Shuh, and N. M. Edelstein, "The Structure of Uranium(VI) Sorption Complexes on Vermiculite and Hydrobiotite," Clays and Clay Minerals 47, 439-457 (1999).   LBNL-46220

S. M. Butorin, M. Magnuson, K. Ivanov, D. K. Shuh, T. Takahashi, S. Kunii, J.-H. Guo, and J. Nordgren, "Resonant Inelastic Soft X-ray Scattering at the 4d Edge of Ce-based Heavy-fermion Materials," J. Electron Spectros. 101-103, 783-786 (1999).  LBNL-42822

L. Fabris, P. G. Allen, J. J. Bucher, N. M. Edelstein, A. Landis, N. W. Madden, and D. K. Shuh, "Fast Peak Detector Stretchers for Use in XAFS Applications," IEEE Trans. Nucl. Sci. 46, 1891-1893 (1999).   LBNL-41710

X. Feng, J. D. Vienna, J. G. Darab, H. Li, J. Liu, B. C. Bunker, R. C. Ewing, E. R. Vance, P. G. Allen, J. J. Bucher, I. M. Craig, N. M. Edelstein, and D. K. Shuh, "Distribution and Solubility of Radionuclides in Waste Forms for Disposition of Plutonium and Spent Nuclear Fuels:  Preliminary Results," Ceramic Transactions 93, 409-419 (1999).   LBNL‑46162

L. L. Davis, L. Li, X. Feng, J. G. Darab, M. Qian, H. Li, P. G. Allen, J. J. Bucher, I. M. Craig, N. M. Edelstein, and D. K. Shuh, "The Effects of Na₂O, Al₂O₃, and B₂O₃ on HfO₂ Solubility in Borosilicate Glass," Mat. Res. Soc. Symp. Proc. 556, 313-320 (1999).   LBNL‑46191

P. G. Allen, J. J. Bucher, D. K. Shuh, N. M. Edelstein, and I. M. Craig, "Coordination Chemistry of Trivalent Lanthanide and Actinide Ions in Concentrated Chloride Solutions," Inorg. Chem. 39, 595-601 (2000).   LBNL‑43193

G. K. Marasinghe, M. Karabulut, C. S. Ray, D. E. Day, D. K. Shuh, P. G. Allen, M. L. Saboungi, M. Grimsditch, and D. Haeffner, "Properties and Structure of Vitrified Iron Phosphate Nuclear Wasteforms," J. Non-Cryst. Solids 263/264, 146-154 (2000).   LBNL‑45212

G. K. Marasinghe, M. Karabulut, X. Fang, C. S. Ray, D. E. Day, J. J. Bucher, N. M. Edelstein, D. K. Shuh, and P. G. Allen, "Vitrified Iron Phosphate Nuclear Wasteforms Containing Multiple Waste Components," Ceramic Transactions, 107, 115 (2000).   LBNL‑46177

M. Karabulut, G. K. Marasinghe, C. S. Ray, D. E. Day, G. D. Waddill, P. G. Allen, C. H. Booth, J. J. Bucher, D. L. Caulder, N. M. Edelstein, D. K. Shuh, and M. Grimsditch, "Local Environment of Iron and Uranium Ions in Vitrified Iron Phosphate Waste Glasses Studied by Fe K and U L_III-Edge X-ray Absorption Spectroscopy," J. Mater. Res. 15, 1972-1984 (2000).   LBNL‑45213

P. Liu and D. K. Shuh, "Adsorption of O₂ on Polycrystalline Rhenium Metal at Room Temperature Studied by Synchrotron X-ray Photoemission Spectroscopy," J. Elect. Spectros. Rel. Phenom, 114, 319-325 (2001).   LBNL-46591

T. Yaita, S. Tachimori, N. M. Edelstein, J. J. Bucher, D. K. Shuh, and P. G. Allen, "EXAFS Studies of the Americium (III)-Benzimidazole Complex in Ethanol," submitted to J. Synch. Rad., 8, 663-665 (2001).   LBNL-46607

S. M. Ponder, J. G. Darab, J. Bucher, D. Caulder, I. Craig, L. Davis, N. Edelstein, W. Lukens, H. Nitsche, L. Rao, D. K. Shuh, and T. E. Mallouk, "Surface Chemistry and Electrochemstry of Supported Zerovalent Iron Nanoparticles in the Remediation of Aqueous Metal Contaminants," Chem. Mater., 13, 479-486 (2001).   LBNL-47148