Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 3215 A new lightning-fast electron microscope Atomic-scale imaging was demonstrated using the new Titan transmission electron microscope, or TEM, installed in the Irradiated Materials Characterization Laboratory (IMCL). The Titan TEM can perform state-of-the-art nanoscale chemical analysis in a fraction of the time required by older systems. Grid infrastructure upgrades INL is breaking ground on several projects over the next three years as part of the DOE $220 million Grid Modernization Initiative. This is a more reliable, resilient and flexible energy delivery method that increases security and efficiency of the system. The dedicated test system at INL provides additional lines and a mesh framework to ensure the experimental environment is more consistent with current industry distribution practices. INL works with industry, universities and government stakeholders to provide testing that reduces risks and facilitates real-world validation and verification of new and innovative concepts, technologies and systems. The grid research includes smart grid devices for automation, distribution, communications, renewable energy and grid-scale energy storage. Modeling and simulation using MAMMOTH The ability to model the TREAT reactor core in both steady-state and transient conditions was demonstrated using coupled Rattlesnake and BISON calculations within MAMMOTH, the MOOSE-based reactor physics tool that combines three-dimensional kinetics and tight multiphysics coupling. Rattlesnake calculates the steady-state or transient solution to the neutron transport equation with delayed neutrons for the full TREAT core; BISON calculates a time-dependent temperature profile within TREAT elements as a function of energy deposition determined from Rattlesnake. MAMMOTH uses the temperature distribution from BISON to update cross-sections for the Rattlesnake calculation. The multiphysics capabilities provided by the MOOSE framework allowed seamless coupling of these calculations for a truly multiphysics solution. The newTitanTEM in INL’s Irradiated Materials Characterization Laboratory (above) and an electron image showing the fission bubble superlattice in an irradiated sample of experimental uranium- molybdenum fuel (below).