A neutron detector is a device that can detect and measure the presence of neutrons, which are tiny particles found in atoms. It helps scientists and researchers study and understand the behavior of neutrons. Full definition
The Lab team's thermal neutron detector started with internal funds from the Laboratory Directed Research and Development program, later receiving funding from the Department of Homeland Security, as well as money from the National Nuclear Security Administration's NA - 22 (the Office of Nonproliferation and Verification Research and Development) and NA - 82 (the Office of Nuclear Threat Science). (llnl.gov)
Their Timed Neutron Detector's resemblance to an overgrown weed whacker is more than coincidental. (discovermagazine.com)
Some neutrons happen to bounce back into space where they can be counted by neutron detectors. (sciencedaily.com)