Photoelectric tubes provide the means for critical measurements.
EMR specializes in the design, manufacture and application of certain unique devices used by Schlumberger and the aerospace industry for critical measurements. These devices include photomultiplier tubes, which detect tiny bursts of light, and generator tubes, which emit neutrons when electronically activated. EMR's major product is a variety of very rugged, high-quality photomultiplier tubes, or PMTs. One of the most sensitive detectors ever devised, EMR's PMTs are used as detectors along with crystals in nuclear logging tools to measure radioactivity. They are used in tools that describe the formation and make nuclear measurements to locate oil and gas.