Filter News
Area of Research
Media Contacts
![ORNL physicist Libby Johnson demonstrated a new control panel at ORNL’s Bulk Shielding Facility in 1957. Among the first females to operate a nuclear reactor, Johnson blazed trails for women. Credit: ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2022-09/Johnson_1.jpg?h=06ac0d8c&itok=JUg5qoxV)
Oak Ridge National Laboratory physicist Elizabeth “Libby” Johnson (1921-1996), one of the world’s first nuclear reactor operators, standardized the field of criticality safety with peers from ORNL and Los Alamos National Laboratory.
![Oscar Martinez loads a special form capsule into the leak tester for a helium leak test in the packaging facility of the National Transportation Research Center. Credit: Jason Richards/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2020-12/2017-P00349_0.jpg?h=eeb3c961&itok=F9YI7AVU)
As program manager for the Department of Energy’s Oak Ridge National Laboratory’s Package Testing Program, Oscar Martinez enjoys finding and fixing technical issues.