COLLABORATORSCity University of New YorkCollege of IdahoHoward UniversityKarlsruhe Institute of Technology Kyushu University Lawrence Berkeley National LaboratoryOak Ridge National LaboratoryOregon State UniversitySandia National LaboratoriesSavannah River National Laboratory

Stanford Synchrotron Radiation LightsourceTexas A&M UniversityUniversity of CambridgeUniversity of ChicagoUniversity of Missouri & MU Research ReactorUniversity of SheffieldUniversity of UtahUniversity of WashingtonWashington State University

STAFF MEMBERS FROM ACROSS PNNL HAVE MADE CONTRIBUTIONS TO NPSI

NUCLEAR PROCESS SCIENCE INITIATIVE (NPSI)NPSI is a five-year, multi-million-dollar Pacific Northwest National Laboratory (PNNL) investment focused on building capabilities to:

Since it began in 2015, NPSI has been investing in people, programs, and capabilities to advance the initiative’s research aims and to help establish PNNL’s Radiochemical Processing Laboratory (RPL) as a premier national resource for research and development test beds. NPSI’s research projects are organized in three “thrust” areas: Legacy Waste, Nuclear Security, and Analytical Capabilities.

NPSI ACCOMPLISHMENTS IN PHOTOS

x Enable resolution of the nation’s legacy wastes from decades of weapons production

x Develop new signature discovery approaches for nuclear forensics and nonproliferation.

NPSI-SPONSORED EVENTS AND LECTURESAugust 24, 2016 ..............................................Aurora Clark (Washington State University) seminar at PNNL

December 9. 2016 .............................. John Auxier II (University of Tennessee-Knoxville) seminar at PNNL

April 5, 2017 ...........................Nanoparticle Reactivity symposium at American Chemical Society meeting

April 20, 2017 ................................. Alexandra Navrotsky (University of California-Davis) seminar at PNNL

August 13, 2018 ..............................................Melissa Denecke (University of Manchester) seminar at PNNL

October 8-10, 2018..................Next-Generation Transmission Electron Microscopy Workshop (NexTEM)

April 1, 2019 .................................................................. Ian Farnan (University of Cambridge) seminar at PNNL

August 4, 2019 ................................................................................................Second-Annual NexTEM Workshop

Researchers developed the world’s first liquid cell Atomic Force Microscope for operation in a radiation environment, studying beta and gamma radiation effects.

NPSI’s use of the Focused Ion Beam in RPL has helped enable advances in understanding noble metals and more fully using research instrumentation across PNNL.

Raman spectroscopy measurements supported NPSI’s efforts to learn more about the formation of interfacial solids that occur during solvent extraction of nuclear fuel.

NPSI researchers developed an X-ray diffraction approach that facilitated quantitative microstructural properties analysis spanning scales.

NPSI research supported the Direct Feed Low Activity Waste (DFLAW) test platform in the RPL. Here, researchers work in a hot cell on the platform.

NPSI’s researchers have used a wide range of instrumentation and equipment in the RPL to conduct their work.

The DFLAW test melter in the RPL benefitted from NPSI advancements.

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