United States
Thomas Kruijer is an isotope geo- and cosmochemist working in the Nuclear and Chemical Sciences Division at Lawrence Livermore National Laboratory. His research is aimed at determining the origin, accretion, and early evolution of planets. This is accomplished by reconstructing the processes and chronology of events that occurred during the earliest stages of Solar System history. To this end, Kruijer measures small-scale isotopic variations in extraterrestrial rock samples, such as meteorites and lunar rocks, by utilizing isotope ratio mass spectrometry techniques. To facilitate advances in this field of research, he has developed and implemented (i) novel methods for isotope ratio measurements using thermal ionization (TIMS) and inductivity coupled plasma mass spectrometry (MC-ICPMS), as well as (ii) state-of-the-art techniques for clean-lab sample preparation and element purification. Kruijer has used isotopic signatures and radiometric ages of planetary samples and lunar rocks to study diverse aspects of early Solar System evolution, including: ♣ the evolution of the solar protoplanetary disk ♣ the origin, accretion, and core formation history of protoplanets ♣ the heritage and formation location of planetary building blocks ♣ the accretion and early differentiation history of the Earth and Mars ♣ the origin and early evolution of the Moon Kruijer's research at LLNL is also focused on addressing problems in nuclear forensics by studying isotopic signatures in anthropogenic samples and/or nuclear materials and by exploiting the analytical expertise required to make advances in cosmochemistry and lunar science using isotopic tools. Professional website: https://people.llnl.gov/kruijer1 Please see ORCID (https://orcid.org/0000-0003-0974-4324) and Google Scholar (https://scholar.google.com/citations?user=INKCxa4AAAAJ&hl=en) for additional publications.
Professor (W3) of Impact and Meteorite Research at the Museum für Naturkunde, Berlin and the Freie Universität Berlin
Nuclear and Chemical Sciences Division