b'INTRODUCTION AND OverviewIn many ways, 2019 at Idaho National Laboratory was another chapter in a saga that started long before. As two reactors from the labs days as the National Reactor Testing Stationthe Advanced Test Reactor (ATR) and the Transient Reactor Test Facility (TREAT)served an increasingly diverse base of customers, the lab was chosen as home to the National Reactor Innovation Center (NRIC), a place for new principles to be tested and validated. The concept builds on other nationalThree important new buildings opened programs based at INL to foster atheir doors in 2019. The Cybercore fertile environment for nuclear energyIntegration Center (CIC) and the advances. The Nuclear Science UserCollaborative Computing Center (C3) Facilities (NSUF) logged its 12thin Idaho Falls represent an effort by successful year, while the Gatewaythe state of Idaho and INL to expand for Accelerated Innovation in Nuclearcollaboration and employment (GAIN), now in its fifth year, realizedopportunities for university students. a growing number of industryThe state-of-the-art CIC will focus collaborations. on securing the nations critical infrastructure control systems while C3 will house INLs three supercomputers, including its newest addition: Sawtooth. Meanwhile at INLs Materials & Fuels Complex, the new Research Collaboration Building has office, laboratory and collaboration space for researchers, Nuclear Science User Facilities staff and long-term visitors.The complex also celebrated another successful project for NASA. In 2019, INL experts fueled and tested the multi-mission radioisotope thermoelectric generator for the Mars 2020 mission. Meanwhile, the ATR began irradiating neptunium targets to produce the fuel for future space power systems. 2'