New Hand-Held Detector Determines Radiation Type

Red Leader writes: "This article covers a new portable radiation detector. A serious problem with conventional Geiger counters is that they don't indicate the type of radiation they're picking up. Thus, fissile material can be disguised as medical stuffs. This device uses a 'low-power cryogenic cooling mechanism originally designed for the aerospace industry' to cool a germainum detector rather than a really big thick-walled steel tank of liquid nitrogen."