Ludlum Measurements Inc. (LMI) is a company that designs, manufactures, and supplies radiation detection and measurement equipment. It offers a range of scintillator products, such as plastic and liquid scintillators, wavelength-shifting plastics, and acrylic light guides, accessories, such as optical cement, reflective paints, optical interface pads, and metalized polyesters. The company also provides photomultiplier tubes, sockets, bases, magnetic shields, HA coatings, and connectors for the industry and scientific community. LMI caters to routine personnel and material monitoring, border security, and emergency response situations.