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Stephen Killough inspects the metal cones that focus microwaves at a board to detect moisture inside, part of the test setup for a new tool to find moisture in building walls. Credit: Carlos Jones/ORNL, US Dept. of Energy

Stephen Killough: ORNL electronics and radio frequency expert is wired for invention

April 23, 2025

After more than 43 years at ORNL, Stephen Killough is inspired by old gear while pioneering new technology.