U.S. Department of Energy

Pacific Northwest National Laboratory

John L. Orrell

Physicist
Dr. John L. Orrell
Dr. John L. Orrell

Dr. John L. Orrell is an experimental nuclear and particle physicist. His research interests include neutrino properties, the search for dark matter, and applications of radiation detection for national security. His technical expertise includes radiation detector design, low background methods, and radiation transport modeling. Dr. Orrell has worked on experiments including solar neutrino measurements, searches for neutrinoless double beta decay, and searches for direct detection of dark matter. Instrumentation development efforts have included Compton-suppressed high-purity gamma-ray spectrometers, low energy measurements using gas proportional counters, and low background liquid scintillation counter design.

Dr. Orrell received his B.S. degrees in physics and philosophy in 1998 from Rensselaer Polytechnic Institute and Ph.D. degree in experimental nuclear physics in 2004 from the University of Washington. His graduate dissertation work was performed with the Sudbury Neutrino Observatory (SNO), for which he shared the 2015 Breakthrough Prize in Fundamental Physics with the members of SNO and other experimental collaborations responsible for the discovery of neutrino oscillations. He took a two-year post-doctoral fellowship at Pacific Northwest National Laboratory prior to joining the research staff in 2006.

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