Lawrence Livermore National Laboratory



Kim Knight

Research Staff
Nuclear and Chemical Sciences Division


 +1 925-422-9396


DegreeDiscipline/InstitutionYear
Ph.D. Earth and Planetary Science
University of California at Berkeley
2006
B.A. Geology
Carleton College
1997

Research Interests

Kim Knight is a staff scientist at Lawrence Livermore National Laboratory focused on nuclear forensic research. A geochemist by training, she was and remains endlessly fascinated with radioactive materials. Dr. Knight received her Ph.D. from the University of California, Berkeley in 2006, working as a post-doctoral researcher at The University of Chicago and Argonne National Laboratory prior to joining LLNL in 2008. She is primarily involved with the analysis of nuclear and associated materials to better understand clues about the origins, locations or processes. She has also been instrumental in the renaissance of historical fallout research to better understand fallout formation and interpretation in near surface nuclear events. In addition to her own research, Kim leads several collaborative technical efforts in the area of nuclear forensics, including with colleagues in the former Soviet Union, and has been involved in the design and delivery of many training courses in technical nuclear forensics, as well as the development and revision of international guidelines as a participant in IAEA consultancies and workshops.

Publications

Bullock, E.S., K.B. Knight, F.M. Richter, N.T. Kita, T. Ushikubo, G.J. MacPherson, A.M. Davis, R.A. Mendybaev, "Mg and Si isotopic fractionation patterns in types B1 and B2 CAIs: Implications for formation under different nebular conditions", Meterotics & Planetary Science, 48:8, 1440-1458, 2013.

Cassata, W.S., Prussin, S.G., Knight, K.B., Hutcheon, I.D., Isselhardt, B.H., Renne, P.R., "When the dust settles: Applications of noble gases to nuclear forensic research", J. Env. Rad., in review.

Crowhurst, J.C., M.R. Armstrong, K.B. Knight, J.M. Zaug, E.M. Behymer "Invariance of the dissipative action at ultrahigh strain rates above the strong shock threshold", Phys. Rev. Lett., 107 144302 1-5, 2011.

Dai, Z., J.C. Crowhurst, C.D Grant, K.B. Knight, V. Tang, A.A. Chernov, E.G. Cook, L.P. Lotscher, I.D. Hutcheon, "Exploring high temperature phenomena related to post-detonation by an electric arc", J. Applied Phys., 114, 204901, LLNL-JRNL-608092, 2013.

Davis, A.M., N.T. Kita, T Ushikubo, G.J. MacPherson, E.S. Bullock, K.B. Knight. "Magnesium Isotopic Evolution of CAIs", 41st Annual Lunar and Planetary Science Conference, 2010.

Eppich, G., K.B. Knight, T.W. Jacomb-Hood, I.D. Hutcheon, G.D. Spriggs, "Actinide (U-Th-Pa) concentrations and isotopic disequilibrium in surface soils and glassy fallout beads from historical nuclear tests", Proceedings of the 54th Annual Meeting of the Institute for Nuclear Materials Management, 2013.

Hutcheon, I.D., M.J. Kristo, K.B. Knight, "Nonproliferation Nuclear Forensics", Uranium – Cradle to Grave, Mineralogical Association of Canada, 377-394, 2013.

Isselhardt, B.H., M.R. Savina, K.B. Knight, M.J. Pellin, I.D. Hutcheon, S.G. Prussin, "Improving Precision in Resonance Ionization Mass Spectrometry: Influence of Laser Bandwidth in Uranium Isotope Ratio Measurements", Anal. Chem., 83, 2469–2475, 2011.

Isselhardt, B.H., D.G. Willingham, M.R. Savina, K.B. Knight, I.D. Hutcheon, "Progress in the Development of RIMS for Quantifying Actinide Isotope Ratios for Nuclear Forensics Applications", Proceedings of the 54th Annual Meeting of the Institute for Nuclear Materials Management, 2013.

Kita, N.T., T. Ushikubo, K.B. Knight, R.A. Mendybaev, A.M. Davis, F.M. Richter, J. Fournelle, "Internal 26Al-26Mg isotope systematics of a type B CAI: Remelting of refractory precursor solids", Geochim. Cosmochim. Acta, 86, 37-51, 2012.

Kita, N.T., T. Ushikubo, A.M. Davis, K.B. Knight, R.A. Mendybaev, F.M. Richter, J.H. Fournelle. "Initial 26Al Abundance in a Type B CAI: Remelting of Pre-Existing Refractory Solid", 41st Annual Lunar and Planetary Science Conference, 2010.

Knight, K.B., Argon Geochronology: I. Applied 40Ar/39Ar Methods to the Chronology of Large Igneous Provinces II. Development of Cosmogenic Argon Methods for Terrestrial Chronology University of California, Berkeley, Ph.D. thesis, 2006.

Knight, K.B., N.T. Kita, A.M. Davis, F.M. Richter, R.A. Mendybaev. "Mg and Si Isotope Fractionation Within Three Type B Ca-Al-Rich Inclusions", 40th Annual Lunar and Planetary Science Conference, XXXX, 2009.

Knight, K.B., N. Kita, R.A. Mendybaev, F. Richter, A.M. Davis, J.W. Valley, "Si isotope fractionation of CAI-like vacuum evaporation residues", Geochim. et Cosmochim. Acta 73, 6390, 2009.

Knight, K.B., S. Nomade, P.R. Renne, A. Marzoli, H. Bertrand and N. Youbi, The Central Atlantic Magmatic Province at the Triassic-Jurassic boundary: paleomagnetic and 40Ar/39Ar evidence for brief, episodic volcanism. Earth and Planetary Science Letters, 228, 143-160, 2004.

Knight, K.B., P.R. Renne, J. Baker, T. Waight, N. White, Reply to '40Ar/39Ar dating of the Rajahmundry Traps, Eastern India and their relationship to the Deccan Traps: Discussion' by A.K. Baksi. Earth and Planetary Science Letters, 239, 374-382, 2005.

Knight, K.B., P.R. Renne, A. Halkett, N. White, 40Ar/39Ar dating of the Rajahmundry Traps, Eastern India and their relationship to the Deccan Traps. Earth and Planetary Science Letters, 208, 85-99, 2002.

Knight, K.B., M.R. Savina, B.H. Isselhardt, I.D. Hutcheon, S.G. Prussin, M.J. Pellin, "Uranium Resonance Ionization Mass Spectrometry in Natural U-silicate", Proc. Radiochim. Acta, 1, 37-43, 2011.

Knight, K.B., M.R. Savina, S.G. Prussin, I.D. Hutcheon, "Multi-Actinide Isotopic Measurements from a Single Sample by Resonance Ionization Mass Spectrometry", Proceedings of the 52nd Annual Meeting of the Institute for Nuclear Materials Management, 2011.

Knight, K.B., S.R. Sutton, M. Newville, A.M. Davis, N. Dauphas, R.S. Lewis, S. Amari, I.M. Steele, M.R. Savina, M.J. Pellin, "Trace element determinations in presolar SiC grains by synchrotron X-Ray fluorescence: Commencement of a coordinated multimethod study", 39th Annual Lunar Planet. Sci. Conf., 2008.

Knight, K.B., E.S. Vergino, O. Gaidar, D.V. Kutniy, G.V. Lysychenko, I.A. Malyuk, A.A. Valter "Strengthening International Nuclear Forensic Capabilities through Collaborative Science in Ukraine", Proceedings of the 52nd Annual Meeting of the Institute for Nuclear Materials Management, 2011.

Levine, J., M.R. Savina, N. Dauphas, A.M. Davis, B.H. Isselhardt, K.B. Knight, R.S. Lewis, M.J. Pellin, T. Stephan. "First Four-Isotope Measurements of Chromium in Presolar SiC Grains", 40th Annual Lunar and Planetary Science Conference, 2009.

Levine, J., M.R. Savina, T. Stephan, N. Dauphas, A.M. Davis, K.B. Knight, M.J. Pellin, "Resonance ionization mass spectrometry for precise measurements of isotope ratios", Int. J. Mass Spec. 288, 36-43, 200.

Marzolli, A., H. Bertrand, K.B. Knight, S. Cirilli, C. Vérati, S. Nomade, R. Martini, N. Youbi, K. Allenbach, R. Neuwerth, N. Buratti, C. Rapaille, L. Zaninetti, G. Bellieni and P.R. Renne, Synchrony of the Central Atlantic magmatic province and the Triassic-Jurassic boundary climatic and biotic crisis. Geology, 32, 973-976, 2004.

Marzoli, A., H. Bertrand, K.B. Knight, S. Cirilli, S. Nomade, P.R. Renne, C. Vérati, N. Youbi, R. Martini, G. Bellieni, 2008. Comment on "Synchrony between the Central Atlantic magmatic province and the Triassic-Jurassic mass-extinction event?" by Whiteside et al. 2007 Palaeogeography, Palaeoclimatology, Palaeoecology, 262:3-4, 189-193, 2008.

Nomade, S., K.B. Knight, E. Beutel, P. R. Renne, C. Vérati, G. Féraud, A. Marzoli, N. Youbi, H. Bertrand, Chronology of the Central Atlantic Magmatic Province: Implications for the Central Atlantic rifting processes and the Triassic-Jurassic biotic crisis. Palaeogeography, Palaeoclimatology, Palaeoecology, 244, 326-344, 2008.

Renne, P.R., J.M. Feinberg, M.R. Waters, J. Arroyo-Cabrales, P. Ochoa-Castillo, M. Perez-Campa, K.B. Knight, Geochronology: Age of Mexican ash with alleged 'footprints' Nature, 438, E7-E8, 2005.

Renne, P.R., K.B. Knight, S. Nomade, K. Leung, T. Lou, Application of a Deuteron-Deuteron (D-D) Fusion Neutron Generator to 40Ar/39Ar Geochronology. Applied Radiation and Isotopes, 62, 25-32, 2005.

Riisager P., K.B. Knight, J.A. Baker, I. Ukstins Peate, M. Al-Kadasi, A. Al-Subbary, P.R. Renne, Paleomagnetism and 40Ar/39Ar Geochronology of Yemeni Oligocene volcanics: Implications for timing and duration of Afro-Arabian traps and geometry of the Oligocene paleomagnetic field. Earth and Planetary Science Letters, 237, 647-672, 2005.

Riley, T.R. and K.B. Knight, Age of pre-break-up Gondwana magmatism. Antarctic Science, 13(2), 99-110, 2001.

Savina, M.R., J. Levine, T. Stephan, N. Dauphas, A.M. Davis, K.B. Knight, M.J. Pellin. "Chromium Isotopes In Presolar SiC Grains", 41st Annual Lunar and Planetary Science Conference, 2010.

Spriggs, G.S., K.B. Knight, R. Gostic, "Characterization of Activity-Size-Distribution of Nuclear Fallout", Stockpile Stewardship Quarterly 2:1, 3-4, 2012.

Ukstins Peate, I., J.A. Baker, M. Al-Kadasi, A. Al-Subbary, K.B. Knight, P. Riisager, M.F. Thirlwall, D.W. Peate, P.R. Renne, M.A. Menzies, Volcanic stratigrpahy of large-volume silicic pyroclastic eruptions during Oligocene Afro-Aerabian flood volcanism in Yemen. Bull Volcanology, 68, 135-156, 2005.

Willingham, D., M.R. Savina, K.B. Knight, M.J. Pellin, I.D. Hutcheon, "RIMS Analysis of Ion Induced Fragmentation of Molecules Sputtered from an Enriched U3O8 Matrix", J. Radioanalytical Nuc. Chem., DOI 10.1007/s10967-012-2028-z, 2012.


Last update: