Dr. Schwantes is a Professor in the Ken and Mary Alice Lindquist Department of Nuclear Engineering at Penn State University working in areas related to aqueous environmental radiochemistry, super-heavy element chemistry and physics, astrophysical nucleosynthesis, science-based stockpile stewardship, nuclear material science and nuclear forensics. Before joining Penn State faculty in 2022, Dr. Schwantes worked as a Senior Research Scientist for the Department of Energy’s Pacific Northwest National Laboratory. He has authored or coauthored 122 publications (79 peer reviewed), was part of the confirmatory team for the discovery of element 111 (subsequently named Roentgenium) and lead a team of researchers in 2009 that identified the oldest known reactor-produced plutonium in the world. Dr. Schwantes currently serves as a Co-Chair of the Exercise Task Group for the Nuclear Forensics International Technical Working Group (ITWG) and is the Lead Subject Matter Expert for the development of an International Training Course on Nuclear Forensic Methodologies for the International Atomic Energy Agency (IAEA), the European Commission’s Jointe Research Centre (JRC) and the US National Nuclear Security Agency (NNSA). He is a past member of the Washington State Academy of Science (2021-2023), was part of two separate Department of Energy response teams during the 2011 accident at the Fukushima Daiichi nuclear station and recently led the forensic examination following the radioactive contamination resulting from a breach of a 3,000 Ci sealed source during recovery operations on May 2nd, 2019, at the University of Washington Harborview Medical Facility. In 2014, Dr. Schwantes was appointed by the Secretary of Energy to serve as a member of the Technical Assessment Team (TAT), a five-person team charged with investigating a major contamination event at the Waste Isolation Pilot Plant (WIPP) that occurred on February 14 of that year. The 40+ scientists he led at PNNL were responsible for bench-scale compatibility testing and ultra-trace analyses of reaction residues collected at the event site. Their efforts identified the underlying reactions responsible for the contamination event, for which nine of his team members and himself were awarded in 2015 the U.S. Department of Energy’s highest non-monetary honor, the Secretary’s Achievement Award.

• Bachelor of Science, Marine Sciences, Texas A&M University at Galveston, 1993
• Master of Science, Chemical Oceanography, Texas A&M University, 1996
• PhD, Environmental Engineering, Texas A&M University, 2002

Journal Articles

Jon Schwantes, J. F. Corbey and O. Marsden, 2022, "Exercise Celestial Skonis: Part 1-History, purpose, design and results of traditional forensic examinations of the 6th Collaborative materials exercise of the nuclear forensics International Technical Working Group", Forensic Chemistry, 29

Jon Schwantes, J. F. Corbey and O. Marsden, 2022, "Exercise Celestial Skonis: Part 2-Emerging technologies and State of Practice of nuclear forensic analyses demonstrated during the 6th collaborative materials exercise of the nuclear forensics International Technical Working Group", Forensic Chemistry, 29

R. G. Surbella, L. C. Ducati, M. H. Schofield, B. K. McNamara, K. L. Pellegrini, J. F. Corbey, Jon Schwantes, J. Autschbach and C. L. Cahill, 2022, "Plutonium Hybrid Materials: A Platform to Explore Assembly and Metal-Ligand Bonding", Inorganic Chemistry

M. L. Hobbs, P. F. Britt, D. T. Hobbs, M. J. Kaneshige, M. Minette, J. Mintz, F. M. Pennebaker, G. R. Parker, R. Pierce, D. M. Rosenberg, Jon Schwantes and A. Williams, 2022, "Thermal runaway of nitric acid-soaked kitty litter in transuranic waste", Process Safety and Environmental Protection, 167, pp. 543-549

J. B. Schwantes, P. D. Quevedo, M. F. D'Avila, A. A. de Paula, V. B. Fortes and D. A. S. Graichen, 2021, "Another Piece of the Puzzle: Echinococcus oligarthrus Recorded in Jaguarundis (Herpailurus yagouaroundi) in Southern Brazil", Journal of Wildlife Diseases, 57, (4), pp. 936-941

R. G. Surbella, D. D. Reilly, M. A. Sinnwell, B. K. McNamara, L. E. Sweet, Jon Schwantes and P. K. Thallapally, 2021, "Multifunctional Two-Dimensional Metal-Organic Frameworks for Radionuclide Sequestration and Detection", Acs Applied Materials & Interfaces, 13, (38), pp. 45696-45707

Jon Schwantes, Jacob L Bair, Edgar C Buck, Ram Devanathan, Sean H Kessler, Timothy G Lach, Jason M Lonergan, Bruce K McNamara, Camille J Palmer and Richard A Clark, 2020, "A new non-diffusional gas bubble production route in used nuclear fuel: implications for fission gas release, cladding corrosion, and next generation fuel design", Physical Chemistry Chemical Physics, 22, (11), pp. 6086-6099

S. H. Kessler, T. G. Lach, K. E. Garrett, M. A. Conroy, D. G. Abrecht, Jon Schwantes and R. A. Clark, 2020, "Direct observations of Pd-Te compound formation within noble metal inclusions in spent nuclear fuel", Journal of Nuclear Materials, 538

Richard A Clark, Michele A Conroy, Timothy G Lach, Edgar C Buck, Kristi L Pellegrini, Bruce K McNamara and Jon Schwantes, 2020, "Distribution of metallic fission-product particles in the cladding liner of spent nuclear fuel", npj Materials Degradation, 4, (1), pp. 1-9

R. G. Surbella, K. P. Carter, T. D. Lohrey, D. Reilly, M. Kalaj, B. K. McNamara, Jon Schwantes and R. J. Abergel, 2020, "Rational Design of a Uranyl Metal-Organic Framework for the Capture and Colorimetric Detection of Organic Dyes", Chemistry-a European Journal, 26, (61), pp. 13819-13825

F. Taylor, M. Higginson, O. Marsden and Jon Schwantes, 2020, "State of practice and emerging application of analytical techniques of nuclear forensic analysis: highlights from the 5th Collaborative Materials Exercise of the Nuclear Forensics International Technical Working Group (ITWG)", Journal of Radioanalytical and Nuclear Chemistry, 323, (1), pp. 415-430

S. V. Jovanovic, P. K. Weber, A. J. Pidduck, A. M. Gaffney, P. Girard, F. Pointurier, M. Hedberg, A. J. Simons, V. Stebelkov, T. Kell, K. Knight, T. Parsons-Davis, M. Kristo, R. W. Williams, K. C. Treinen, N. J. Montgomery, J. King, A. Wickenden, D. Knight, A. L. Faure, A. Hubert, N. Albert, M. C. Vincent, M. Wallenius, I. A. Elantyev, K. D. Zhizhin, Jon Schwantes, O. Marsden and F. Taylor, 2020, "Uncovering uranium isotopic heterogeneity of fuel pellets from the fifth collaborative materials exercise of The Nuclear Forensics International Technical Working Group", Journal of Radioanalytical and Nuclear Chemistry, 326, (3), pp. 1853-1866

Jon Schwantes, Michele Conroy, Timothy G Lach, Jason M Lonergan, Kristi L Pellegrini, J David Robertson and Richard A Clark, 2019, "Changing the rules of the game: used fuel studies outside of a remote handling facility", Journal of Radioanalytical and Nuclear Chemistry, 322, (3), pp. 1267-1272

Kristi L Pellegrini, Chuck Z Soderquist, Steve D Shen, Eirik J Krogstad, Camille J Palmer, Kyzer R Gerez, Edgar C Buck, Timothy G Lach, Jon Schwantes and Richard A Clark, 2019, "Chemical and isotopic characterization of noble metal phase from commercial UO2 fuel", Analytical chemistry, 91, (10), pp. 6522-6529

Timothy G Lach, Danny J Edwards, Edgar C Buck, Bruce K McNamara, Jon Schwantes and Richard A Clark, 2019, "Fission recoil-induced microstructural evolution of the fuel-cladding interface [FCI] in high burnup BWR fuel", Journal of Nuclear Materials, 521, pp. 120-125

R. Devanathan, W. L. Jiang, K. Kruska, M. A. Conroy, T. C. Droubay and Jon Schwantes, 2019, "Hexagonal close-packed high-entropy alloy formation under extreme processing conditions", Journal of Materials Research, 34, (5), pp. 709-719

W. L. Jiang, M. A. Conroy, K. Kruska, M. J. Olszta, T. C. Droubay, Jon Schwantes, C. A. Taylor, P. M. Price, K. Hattar and R. Devanathan, 2019, "In Situ Study of Particle Precipitation in Metal-Doped CeO2 during Thermal Treatment and Ion Irradiation for Emulation of Irradiating Fuels", Journal of Physical Chemistry C, 123, (4), pp. 2591-2601

Camille J Palmer, Kyzer R Gerez, Jon Schwantes and Richard A Clark, 2019, "Scoping evaluation of trace isotopic ratios within the noble metal-phase as indicators of reactor class", Progress in Nuclear Energy, 117, pp. 103059

K. E. Garrett, D. G. Abrecht, S. H. Kessler, N. J. Henson, R. Devanathan, Jon Schwantes and D. D. Reilly, 2018, "Carbon diffusion in molten uranium: an ab initio molecular dynamics study", Modelling and Simulation in Materials Science and Engineering, 26, (3)

J. F. Corbey, B. M. Rapko, Z. M. Wang, B. K. McNamara, R. G. Surbella, K. L. Pellegrini and Jon Schwantes, 2018, "Crystallographic and Spectroscopic Characterization of Americium Complexes Containing the Bis[(phosphino)methyl]pyridine-1-oxide (NOPOPO) Ligand Platform", Inorganic Chemistry, 57, (4), pp. 2278-2287

JM Schwantes, O Marsden and D Reilly, 2018, "Fourth collaborative materials exercise of the nuclear forensics international technical working group", Journal of Radioanalytical and Nuclear Chemistry, 315, (2), pp. 347-352

S. Kessler, T. Lach, E. Buck, Jon Schwantes and R. Clark, 2018, "Observation and characterization of Pd-Te compounds within noble metal inclusions in spent nuclear fuel", Abstracts of Papers of the American Chemical Society, 256

R. G. Surbella, L. C. Ducati, J. Autschbach, K. L. Pellegrini, B. K. McNamara, Jon Schwantes and C. L. Cahill, 2018, "Plutonium chlorido nitrato complexes: ligand competition and computational metrics for assembly and bonding", Chemical Communications, 54, (85), pp. 12014-12017

D. D. Reilly, M. T. Athon, J. E. Corbey, I. I. Leavy, K. M. McCoy and Jon Schwantes, 2018, "Trace element migration during UF4 bomb reduction: Implications to metal fuel production, worker health and safety, and nuclear forensics", Journal of Nuclear Materials, 510, pp. 156-162

R. G. Surbella, L. C. Ducati, K. L. Pellegrini, B. K. McNamara, J. Autschbach, Jon Schwantes and C. L. Cahill, 2017, "A new Pu(III) coordination geometry in (C5H5NBr)(2)[PuCl3(H2O)(5)].2Cl.2H(2)O as obtained via supramolecular assembly in aqueous, high chloride media", Chemical Communications, 53, (78), pp. 10816-10819

A. Drescher, M. Yoho, S. Landsberger, M. Durbin, S. Biegalski, D. Meier and Jon Schwantes, 2017, "Gamma-gamma coincidence performance of LaBr3:Ce scintillation detectors vs HPGe detectors in high count-rate scenarios", Applied Radiation and Isotopes, 122, pp. 116-120

Jamie Coble, Christopher Orton and Jon Schwantes, 2017, "Multivariate analysis of gamma spectra to characterize used nuclear fuel", Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment, 850, pp. 18-24

Jon Schwantes, 2017, "Nuclear Forensics International Technical Working Group collaborative materials exercises: Advancing the state and practice of nuclear forensic analysis since 1999", Abstracts of Papers of the American Chemical Society, 254

K. Pellegrini, C. Soderquist, R. Clark and Jon Schwantes, 2017, "Radiochemical, elemental, and isotopic analysis of epsilon phase material from irradiated fuel", Abstracts of Papers of the American Chemical Society, 253

Jon Schwantes, Oliva Marsden and Kristi L. Pellegrini, 2017, "State of practice and emerging application of analytical techniques of nuclear forensic analysis: highlights from the 4th Collaborative Materials Exercise of the Nuclear Forensics International Technical Working Group (ITWG)", Journal of Radioanalytical and Nuclear Chemistry, 311, (2), pp. 1441-1452

J. Corbey, B. McNamara, B. Rapko and Jon Schwantes, 2017, "Structural exploration of trivalent f element-containing species of interest for liquid-liquid extraction processes", Abstracts of Papers of the American Chemical Society, 253

Lucas E. Sweet, Jordan F. Corbey, Frederic Gendron, Jochen Autschbach, Bruce K. McNamara, Kate L. Ziegelgruber, Leah M. Arrigo, Shane M. Peper and Jon Schwantes, 2017, "Structure and Bonding Investigation of Plutonium Peroxocarbonate Complexes Using Cerium Surrogates and Electronic Structure Modeling", Inorganic Chemistry, 56, (2), pp. 791-801

Randall D. Scheele, Bruce K. McNamara, Jon Schwantes, David T. Hobbs, Michael J. Minette and Christopher A. Barrett, 2017, "Thermoanalytical investigation of the reactions causing the transuranic waste drum breach that occurred in the Waste Isolation Pilot Plant", Thermochimica Acta, 650, pp. 76-87

Robert G Surbella, III, Lucas C Ducati, Kristi L Pellegrini, Bruce K McNamara, Jochen Autschbach, Jon Schwantes and Christopher L Cahill, 2017, "Transuranic Hybrid Materials: Crystallographic and Computational Metrics of Supramolecular Assembly", Journal of the American Chemical Society, 139, (31), pp. 10843-10855

R. Clark, B. McNamara, C. Barinaga, J. Peterson, N. Govind, A. Andersen, D. Abrecht, Jon Schwantes and N. Ballou, 2016, "Rapid and selective production and separation of volatile metal fluorides via nitrogen trifluoride fluorination for mass spectrometry", Abstracts of Papers of the American Chemical Society, 251

Richard A. Clark, Charles J. Barinaga, Bruce K. McNamara, Jon Schwantes and Nathan E. Ballou, 2016, "Selective fluorination and separation of metals with NF3 for mass spectrometry", Journal of Radioanalytical and Nuclear Chemistry, 307, (3), pp. 1587-1590

Edgar C. Buck, Edward J. Mausolf, Bruce K. McNamara, Chuck Z. Soderquist and Jon Schwantes, 2016, "Sequestration of radioactive iodine in silver-palladium phases in commercial spent nuclear fuel", Journal of Nuclear Materials, 482, pp. 229-235

R. Surbella, K. Pellegrini, B. McNamara, D. Meier, Jon Schwantes and C. Cahill, 2016, "Supramolecular assembly of actinide bearing hybrid materials: structural systematics and properties", Abstracts of Papers of the American Chemical Society, 251

J. Corbey, L. Sweet, B. McNamara and Jon Schwantes, 2016, "Synthesis and structural comparison of f element-carbonato species for nuclear material analysis", Abstracts of Papers of the American Chemical Society, 251

S. H. Kessler, D. G. Abrecht, R. A. Clark and Jon Schwantes, 2016, "Vibrational contributions to phase stability in the Mo-Ru system", Journal of Alloys and Compounds, 689, pp. 969-976

Richard A. Clark, Bruce K. McNamara, Charles J. Barinaga, James M. Peterson, Niranjan Govind, Amity Andersen, David G. Abrecht, Jon Schwantes and Nathan E. Ballou, 2015, "Electron Ionization Mass Spectrum of Tellurium Hexafluoride", Inorganic Chemistry, 54, (10), pp. 4821-4826

David G. Abrecht and Jon Schwantes, 2015, "Linear Free Energy Correlations for Fission Product Release from the Fukushima-Daiichi Nuclear Accident", Environmental Science & Technology, 49, (5), pp. 3158-3166

R. I. Palomares, K. J. Dayman, S. Landsberger, S. R. Biegalski, C. Z. Soderquist, A. J. Casella, M. C. Brady Raap and Jon Schwantes, 2015, "Measuring the noble metal and iodine composition of extracted noble metal phase from spent nuclear fuel using instrumental neutron activation analysis", Applied Radiation and Isotopes, 98, pp. 66-70

Edgar C. Buck, Edward J. Mausolf, Bruce K. McNamara, Chuck Z. Soderquist and Jon Schwantes, 2015, "Nanostructure of metallic particles in light water reactor used nuclear fuel", Journal of Nuclear Materials, 461, pp. 236-243

David G. Abrecht, Jon Schwantes, Ravi K. Kukkadapu, Benjamin S. McDonald, Gregory C. Eiden and Lucas E. Sweet, 2015, "Real-time noise reduction for Mossbauer spectroscopy through online implementation of a modified Kalman filter", Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment, 773, pp. 66-71

Jon Schwantes, L. Sweet, E. Buck, T. Johnson, D. Reilly, D. Abrecht and E. Mausolf, 2015, "Spatially resolved characterization techniques for next generation nuclear forensics signature development", Abstracts of Papers of the American Chemical Society, 249

DL Wilson, ML Baker, BR Hart, JE Marra, JM Schwantes and PE Shoemaker, 2015, "Waste Isolation Pilot Plant Technical Assessment Team Report", US Energy Department, March, 17

Kenneth J. Dayman, Jamie B. Coble, Christopher R. Orton and Jon Schwantes, 2014, "Characterization of used nuclear fuel with multivariate analysis for process monitoring", Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment, 735, pp. 624-632

David G. Abrecht and Jon Schwantes, 2014, "Thermodynamic modeling of fission product release from the Fukushima Daiichi nuclear accident", Abstracts of Papers of the American Chemical Society, 247

Sarah E. Bender, Kenan Uenlue, Christopher R. Orton and Jon Schwantes, 2013, "Geant4 model validation of Compton suppressed system for process monitoring of spent fuel", Journal of Radioanalytical and Nuclear Chemistry, 296, (2), pp. 647-654

Richard A. Clark, J. David Robertson, Eric D. Walter, Steve D. Miller and Jon Schwantes, 2013, "Intrinsic dosimetry of glass containers: a potential interrogation tool for nuclear forensics and waste management", Journal of Radioanalytical and Nuclear Chemistry, 296, (2), pp. 663-668

Richard A. Clark, J. David Robertson and Jon Schwantes, 2013, "Intrinsic dosimetry: Elemental composition effects on the thermoluminescence of commercial borosilicate glass", Radiation Measurements, 59, pp. 270-276

Lucas E. Sweet, Thomas A. Blake, Charles H. Henager, Jr., Shenyang Hu, Timothy J. Johnson, David E. Meier, Shane M. Peper and Jon Schwantes, 2013, "Investigation of the polymorphs and hydrolysis of uranium trioxide", Journal of Radioanalytical and Nuclear Chemistry, 296, (1), pp. 105-110

Jon Schwantes, 2013, "Nuclear Forensics International Technical Working Group (ITWG): A global network of nuclear forensic practitioners combatting nuclear nonproliferation and terrorism", Abstracts of Papers of the American Chemical Society, 246

Jamie B. Coble, Jon Schwantes and Chris R. Orton, 2013, "Online process verification with the multi-isotope process monitor", Abstracts of Papers of the American Chemical Society, 245

L. E. Sweet, D. D. Reilly, D. G. Abrecht, E. C. Buck, D. E. Meier, Y. F. Su, C. S. Brauer, Jon Schwantes, R. G. Tonkyn, J. E. Szecsody, T. A. Blake and T. J. Johnson, 2013, "Spectroscopic Studies of the Several Isomers of UO3", Optics and Photonics for Counterterrorism, Crime Fighting and Defence Ix; and Optical Materials and Biomaterials in Security and Defence Systems Technology X, 8901

Richard A. Clark, Eric D. Walter, J. David Robertson and Jon Schwantes, 2013, "Thermoluminescence of commercial borosilicate glass for intrinsic dosimetry", Abstracts of Papers of the American Chemical Society, 245

Dallas Reilly, Jon Schwantes and Luke Sweet, 2013, "Understanding the polymorphic nature of UO3 to infer process history", Abstracts of Papers of the American Chemical Society, 246

Jon Schwantes, S. A. Bryan, C. R. Orton, Tatiana G. Levitskaia, S. H. Pratt, C. G. Fraga and J. B. Coble, 2012, "Advanced process monitoring safeguards technologies at Pacific Northwest National Laboratory", Atalante 2012 International Conference on Nuclear Chemistry For Sustainable Fuel Cycles, 7, pp. 716-724

Jon Schwantes, Christopher R. Orton and Richard A. Clark, 2012, "Analysis of a Nuclear Accident: Fission and Activation Product Releases from the Fukushima Daiichi Nuclear Facility as Remote Indicators of Source Identification, Extent of Release, and State of Damaged Spent Nuclear Fuel", Environmental Science & Technology, 46, (16), pp. 8621-8627

B. E. Johnson, P. H. Santschi, C. Y. Chuang, S. Otosaka, R. S. Addleman, M. Douglas, R. D. Rutledge, W. Chouyyok, J. D. Davidson, G. E. Fryxell and Jon Schwantes, 2012, "Collection of Lanthanides and Actinides from Natural Waters with Conventional and Nanoporous Sorbents", Environmental Science & Technology, 46, (20), pp. 11251-11258

L. E. Sweet, E. C. Buck, C. H. Henager, S. Y. Hu, D. E. Meier, S. M. Peper, Jon Schwantes, Y. F. Su, R. L. Sams, T. A. Blake, T. J. Johnson, T. J. Kulp, R. L. Sommers, J. D. Sugar and J. D. Chames, 2012, "Investigations into the Polymorphs and Hydration Products of UO3", Chemical, Biological, Radiological, Nuclear, and Explosives (Cbrne) Sensing Xiii, 8358

Christopher R. Orton, Carlos G. Fraga, Richard N. Christensen and Jon Schwantes, 2012, "Proof of concept experiments of the multi-isotope process monitor: An online, nondestructive, near real-time monitor for spent nuclear fuel reprocessing facilities", Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment, 672, pp. 38-45

Jon Schwantes, Christopher R. Orton and Richard A. Clark, 2012, "Releases from the Fukushima Daiichi nuclear accident as remote indicators of source identification, extent of release, and state of damaged spent nuclear fuel", Abstracts of Papers of the American Chemical Society, 244

Bryce E. Johnson, Peter H. Santschi, Raymond Shane Addleman, Matt Douglas, Joseph D. Davidson, Glen E. Fryxell and Jon Schwantes, 2011, "Collection of fission and activation product elements from fresh and ocean waters A comparison of traditional and novel sorbents", Applied Radiation and Isotopes, 69, (1), pp. 205-216

Samuel A Bryan, Tatiana G Levitskaia, Jon Schwantes, Christopher R Orton, James M Peterson and Amanda J Casella, 2011, "Monitoring, Controlling and Safeguarding Radiochemical Streams at Spent Fuel Reprocessing Facilities, Part 1: Optical Spectroscopic Methods", International Journal of Nuclear Energy Management and Safety, 2011, (1), pp. 21-38

Bryce E. Johnson, Peter H. Santschi, Raymond Shane Addleman, Matt Douglas, Joe Davidson, Glen E. Fryxell and Jon Schwantes, 2011, "Optimization and evaluation of mixed-bed chemisorbents for extracting fission and activation products from marine and fresh waters", Analytica Chimica Acta, 708, (1-2), pp. 52-60

Christopher R Orton, Carlos G Fraga, Richard N Christensen and Jon Schwantes, 2011, "Proof of concept simulations of the Multi-Isotope Process monitor: An online, nondestructive, near-real-time safeguards monitor for nuclear fuel reprocessing facilities", Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 629, (1), pp. 209-219

Richard A. Clark, Steve D. Miller, J. David Robertson and Jon Schwantes, 2010, "Applicability of intrinsic dosimetry to waste management and nuclear forensics", Abstracts of Papers of the American Chemical Society, 240

Jon Schwantes and P. H. Santschi, 2010, "Mechanisms of plutonium sorption to mineral oxide surfaces: new insights with implications for colloid-enhanced migration", Radiochimica Acta, 98, (9-11), pp. 737-742

Jon Schwantes, 2010, "Nuclear forensics at Pacific Northwest National Laboratory", Abstracts of Papers of the American Chemical Society, 240

B. E. Johnson, P. H. Santschi, Jon Schwantes, M. Douglas and R. S. Addleman, 2009, "Chemosorbents for natural and artificial radionuclides detection by in situ gamma counting in natural waters", Geochimica Et Cosmochimica Acta, 73, (13), pp. A600

Jon Schwantes, S. D. Miller, R. K. Piper, M. K. Murphy, J. E. Amonette, S. Bonde and D. C. Duckworth, 2009, "Intrinsic dosimetry of glass containers used to transport nuclear materials: Potential implications to the fields of waste management and nuclear forensics", Radiation Measurements, 44, (4), pp. 405-408

Jon Schwantes, R. S. Addleman, J. D. Davidson, M. Douglas, D. Meier, O. D. Mullen, M. Myjak, M. E. Jones, M. L. Woodring, B. Johnson and P. H. Santschi, 2009, "Medium-resolution autonomous in situ gamma detection system for marine and coastal waters", Journal of Radioanalytical and Nuclear Chemistry, 282, (3), pp. 889-895

Jon Schwantes, Matthew Douglas, S. Bonde, J. D. Briggs, Orville T. Farmer, III, Lawrence R. Greenwood, E. Lepel, C. Orton, J. Wacker and A. Luksic, 2009, "Nuclear archeology in a bottle: Evidence of pre-Trinity US weapons activities from a waste burial site", Abstracts of Papers of the American Chemical Society, 237

Jon Schwantes, R. Sudowe, H. Nitsche and D. C. Hoffman, 2008, "Applications of solvent extraction in the high-yield multi-process reduction/separation of Eu from excess Sm", Journal of Radioanalytical and Nuclear Chemistry, 276, (2), pp. 543-548

E. -I. Esch, R. Reifarth, E. M. Bond, T. A. Bredeweg, A. Couture, S. E. Glover, U. Greife, R. C. Haight, A. M. Hatarik, R. Hatarik, M. Jandel, T. Kawano, A. Mertz, J. M. O'Donnell, R. S. Rundberg, Jon Schwantes, J. L. Ullmann, D. J. Vieira, J. B. Wilhelmy and J. M. Wouters, 2008, "Measurement of the (237)Np(n, gamma) cross section from 20 meV to 500 keV with a high efficiency, highly segmented 4 pi BaF(2) detector", Physical Review C, 77, (3)

Jon Schwantes, W. A. Taylor, R. S. Rundberg and D. J. Vieira, 2008, "Preparation of a one-curie Tm-171 target for the detector for advanced neutron capture experiments (DANCE)", Journal of Radioanalytical and Nuclear Chemistry, 276, (2), pp. 533-542

W. E. Parker, S. A. Sheets, U. Agvaanluvsan, J. A. Becker, F. Becvar, T. A. Bredeweg, R. Clement, A. Couture, E. Esch, R. C. Haight, M. Jandel, M. Krticka, G. E. Mitchell, R. Macri, J. M. O'Donnell, R. Reifarth, R. S. Rundberg, Jon Schwantes, J. L. Ullmann, D. J. Vieira, J. M. Wouters and P. A. Wilk, 2008, "Review of Livermore-led neutron capture studies using DANCE", International Conference on Nuclear Data For Science and Technology, Vol 1, Proceedings, pp. 491-494

Jon Schwantes, Tere Simmons, Ryan Slaugh, Erica Ortega and Mark D. Engelmann, 2007, "Automated gas-phase separation of environmental iodine in preparation for isotopic analysis", Abstracts of Papers of the American Chemical Society, 233

Christopher R. Orton, Richard N. Christensen, Matthew Douglas, L. Eric Smith, J. J. Ressler, C. Durst and Jon Schwantes, 2007, "Multiisotope approach to process monitoring in reprocessing plants", Abstracts of Papers of the American Chemical Society, 234

U. Agvaanluvsan, J. A. Becker, R. A. Macri, W. Parker, P. Wilk, C. Y. Wu, T. A. Bredeweg, E. Esch, R. C. Haight, J. M. O'Donnell, R. Reifarth, R. S. Rundberg, Jon Schwantes, J. L. Ullmann, D. J. Vielra, J. B. Wilhelmy, J. M. Wouters, G. E. Mitchell, S. Sheets, F. Becvar and M. Krticka, 2007, "Progress on the europium neutron capture study using DANCE", Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions With Materials and Atoms, 261, (1-2), pp. 934-937

JM Wouters, AA Vicente, TA Bredeweg, E Esch, RC Haight, R Hatarik, JM O'Donnell, R Reifarth, RS Rundberg, JM Schwantes, SA Sheets, JL Ullmann, DJ Vieira and JB Wilhelmy, 2006, "Acquisition - Analysis system for the DANCE (Detector for Advanced Neutron Capture Experiments) BaF2 gamma-ray calorimeter", Ieee Transactions on Nuclear Science, 53, (3), pp. 880-885

CM Folden, SL Nelson, CE Dullmann, JM Schwantes, R Sudowe, PM Zielinski, KE Gregorich, H Nitsche and DC Hoffman, 2006, "Excitation function for the production of (262)Bh (Z=107) in the odd-Z-projectile reaction (208)Pb((55)Mn, n)", Physical Review C, 73, (1)

R Sudowe, MG Calvert, CE Dullmann, LM Farina, CM Folden, KE Gregorich, SEH Gallaher, DC Hoffman, SL Nelson, DC Phillips, JM Schwantes, RE Wilson, PM Zielinski and H Nitsche, 2006, "Extraction of short-lived zirconium and hafnium isotopes using crown ethers: A model system for the study of rutherfordium", Radiochimica Acta, 94, (3), pp. 123-129

R. S. Rundberg, T. A. Bredeweg, E. M. Bond, R. C. Haight, L. F. Hunt, A. Kronenberg, J. M. O'Donnell, Jon Schwantes, J. L. Ullmann, D. J. Vieira, J. B. Wilhelmy and J. M. Wouters, 2006, "Neutron capture cross sections of U-236 and U-234", Capture Gamma-Ray Spectroscopy and Related Topics, 819, pp. 312-+

R. Reifarth, U. Agvaanluvsan, A. Alpizar-Vicente, T. A. Bredeweg, E. I. Esch, U. Greife, R. C. Haight, R. Hatarik, F. Herwig, J. M. O'Donnell, R. S. Rundberg, Jon Schwantes, J. L. Ullmann, D. J. Vieira and J. M. Wouters, 2006, "Neutron capture rates on radioactive nuclides - DANCE", New Astronomy Reviews, 50, (7-8), pp. 644-647

JM Schwantes, RS Rundberg, WA Taylor and DJ Vieira, 2006, "Rapid, high-purity, lanthanide separations using HPLC", Journal of Alloys and Compounds, 418, (1-2), pp. 189-194

JM Schwantes and B Batchelor, 2006, "Simulated infinite-dilution leach test", Environmental Engineering Science, 23, (1), pp. 4-13

T. A. Bredeweg, M. M. Fowler, J. A. Becker, E. M. Bond, M. B. Chadwick, R. R. C. Clement, E. I. Esch, T. Ethvignot, T. Granier, L. F. Hunt, R. A. Macri, J. M. O'Donnell, R. S. Rundberg, Jon Schwantes, J. L. Ullmann, D. J. Vieira, J. B. Wilhelmy, J. M. Wouters, C. Y. Wu and J. E. Yurkon, 2006, "Simultaneous measurement of (n,gamma) and (n,fission) cross sections with the DANCE 4 pi BaF2 array", Capture Gamma-Ray Spectroscopy and Related Topics, 819, pp. 568-+

U. Agvaanluvsan, A. Alpizar-Vicente, J. A. Becker, F. Becvaf, T. A. Bredeweg, R. Clement, E. Esch, C. M. Folden, R. Hatarik, R. C. Haight, D. C. Hoffman, M. Krticka, R. A. Macri, G. E. Mitchell, H. Nitsche, J. M. O'Donnell, W. Parker, R. Reifarth, R. S. Rundberg, Jon Schwantes, S. A. Sheets, J. L. Ullmann, D. J. Vieira, J. B. Wilhelmy, P. Wilk, J. M. Wouters and C. Y. Wu, 2006, "The radiative strength function using the neutron-capture reaction on Eu-151,Eu-153", Capture Gamma-Ray Spectroscopy and Related Topics, 819, pp. 295-+

R Reifarth, EI Esch, A Alpizar-Vicente, EM Bond, TA Bredeweg, SE Glover, U Greife, R Hatarik, RC Haight, A Kronenberg, JM O'Donnell, RS Rundberg, JM Schwantes, JL Ullmann, DJ Vieira, JB Wilhelmy and JM Wouters, 2005, "(n,gamma) measurements on radioactive isotopes with DANCE", Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions With Materials and Atoms, 241, (1-4), pp. 176-179

A Abdel-Wahab, B Batchelor and Jon Schwantes, 2005, "An equilibrium model for chloride removal from recycled cooling water using the ultra-high lime with aluminum process", Water Environment Research, 77, (7), pp. 3059-3065

KE Gregorich, W Loveland, D Peterson, PM Zielinski, SL Nelson, YH Chung, CE Dullmann, CM Folden, K Aleklett, R Eichler, DC Hoffman, JP Omtvedt, GK Pang, JM Schwantes, S Soverna, P Sprunger, R Sudowe, RE Wilson and H Nitsche, 2005, "Attempt to confirm superheavy element production in the Ca-48+U-238 reaction", Physical Review C, 72, (1)

D. Rochman, R. C. Haight, S. A. Wender, J. M. O'Donnell, A. Michaudon, K. Huff, D. J. Vieira, E. Bond, R. S. Rundberg, A. Kronenberg, J. Wilhelmy, T. A. Bredeweg, Jon Schwantes, T. Ethvignot, T. Granier, A. Petit and Y. Danon, 2005, "First measurements with a lead slowing-down spectrometer at LANSCE", International Conference on Nuclear Data for Science and Technology, Pts 1 and 2, 769, pp. 736-739

Jon Schwantes, R. Sudowe, H. Nitsche and D. C. Hoffman, 2005, "High-yield high-purity multi-process reduction/separation of Eu from lanthanide mixtures.", Abstracts of Papers of the American Chemical Society, 229, pp. U314-U314

CM Folden, KE Gregorich, CE Dullmann, SL Nelson, JM Schwantes, R Sudowe, PM Zielinski, H Nitsche and DC Hoffman, 2005, "Measurement of the Pb-208(Mn-55, n)(262)Bh excitation function.", Abstracts of Papers of the American Chemical Society, 229, pp. U313

R. Reifarth, A. Alpizar-Vicente, R. Hatarik, T. A. Bredeweg, E. I. Esch, U. Greife, R. C. Haight, A. Kronenberg, J. M. O'Donnell, R. S. Rundberg, Jon Schwantes, J. L. Ullmann, D. J. Vieira and J. M. Wouters, 2005, "Nuclear astrophysics at DANCE", International Conference on Nuclear Data for Science and Technology, Pts 1 and 2, 769, pp. 1323-1326

JM Schwantes and B Batchelor, 2005, "Pu colloid-enhanced migration: Importance of relatively fast sorption kinetics at long-term disposal sites.", Abstracts of Papers of the American Chemical Society, 229, pp. U307

J. L. Ullmann, U. Agvaanluvsan, A. Alpizar, E. M. Bond, T. A. Bredeweg, E. I. Esch, C. M. Folden, U. Greife, R. Hatarik, R. C. Haight, D. C. Hoffman, L. Hunt, A. Kronenberg, J. M. O'Donnell, R. Reifarth, R. S. Rundberg, Jon Schwantes, D. D. Strottman, D. J. Vieira, J. B. Wilhelmy and J. M. Wouters, 2005, "The detector for advanced neutron capture experiments: A 4 pi BaF2 detector for neutron capture measurements at LANSCE", International Conference on Nuclear Data for Science and Technology, Pts 1 and 2, 769, pp. 918-923

C. M. Folden, K. E. Gregorich, C. E. Dullmann, H. Mahmud, G. K. Pang, Jon Schwantes, R. Sudowe, P. M. Zielinski, H. Nitsche and D. C. Hoffman, 2004, "Development of an odd-Z-projectile reaction for heavy element synthesis: Pb-208(Ni-64,n)(271)Ds and Pb-208(Cu-65,n)(272)111", Physical Review Letters, 93, (21)

Jon Schwantes and W. Batchelor, 2003, "Sorption constants for Pu(III) - Pu(VI) onto mineral oxide surfaces", Plutonium Futures - the Science, 673, pp. 377-380

M Baskaran, S Asbill, Jon Schwantes, P Santschi, MA Champ, JM Brooks, D Adkinson and V Makeyev, 2000, "Concentrations of Cs-137, Pu-239,Pu-240 and Pb-210 in sediment samples from the Pechora Sea and biological samples from the Ob, Yenisey Rivers and Kara Sea", Marine Pollution Bulletin, 40, (10), pp. 830-838

Jon Schwantes and B. Batchelor, 2000, "Equilibrium, kinetic and reactive transport models for Pu: Employing numerical methods to uncover the nature of the intrinsic colloid", Plutonium Futures-the Science, 532, pp. 292-295

A. S. Pilcher, J. W. Schwantes, P. Loezos, V. Lee, A. L. Slover and P. DeShong, 1997, "Investigation of fluorosilicates in fluorination reactions.", Abstracts of Papers of the American Chemical Society, 213, pp. 4-Fluo

G. Benoit, Jon Schwantes, G. Jacinto and M. R. Goudcollins, 1994, "Preliminary-Study of the Redistribution and Transformation of Hgs from Cinnabar Mine Tailings Deposited in Honda Bay, Palawan, Philippines", Marine Pollution Bulletin, 28, (12), pp. 754-759

Other

Schwantes, J.; Hanson, E.; Bohlke, J.; Cartwright,, J.; Clark, R.; Corbey, J.; Engelmann, M.;, Gervais, K.; Greenwood, L.; Middleton-Smith, L.; Miller,, M.; Orton, R.; Pierson, B.; Reilly, D.;, Steen, F.; Sweet, L.; Uhnak and N., 2020, "Summary of Forensic Examinations in Support of Breach Sealed Source Event at Harborview Medical Facility on 2 May 2019", (PNNL-30053)

David L Wilson, Audrey M Williams, Phillip F Britt, Jon Schwantes, Michael J Kaneshige and Frank M Pennebaker, 2020, "Waste Control Specialists Technical Review Team Report"

Douglas C Duckworth, Judah I Friese, Shane M Peper, Matthew Douglas, Jon Schwantes, Martin Liezers and Scott A Lehn, 2010, "Electrochemically Modulated Separations for In-line and At-line Monitoring of Actinides in High-Volume Process Streams"

• US Department of Energy's Secretary's Achievement Award, US Department of Energy, 2016

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