The HRM is a small, self-contained gamma ray and thermal neutron radiation detector for use in the interdiction and localization of nuclear materials. It was specifically designed for operators who need to quickly and discreetly detect and locate a threat device or radiological materials in an unpredictable radiation background.
As a fully militarized and ruggedized nuclear search instrument, the HRM is in a class of its own. Unlike commercial-grade instruments currently available, the HRM can be carried on a parachute jump, can be used by divers underwater, and can be easily employed by gloved and equipped operators in a full range of tactical and environmental conditions. As a highly sensitive instrument for the detection of gamma and neutron radiation at standoff range, the HRM has long been established as the gold standard nuclear search handheld for elite Military, Law Enforcement, and Federal Agency operators.
The high sensitivity of the HRM is made possible by the use of a high-quality photomultiplier tube and a cesium iodide scintillator combined with a high-pressure Helium-3 filled proportional counter. It is the size of a flashlight and is intended to be handheld or worn on the operator’s belt, leg, or arm in the nylon holster