Patent ID: 7470909
Filing Date: 2008-12-30
Classification: G01T

Abstract:
1. A portable directional gamma ray radiation detector comprising an enclosure for at least three gamma ray radiation detectors separated by shielding for gamma radiation, outputs from the gamma ray detectors being connected to a signal processor to determine an angle towards a source of gamma rays with an output from the signal processor being connected to a display device on the detector that indicates an angle to a source of gamma rays, wherein a spectroscopy sensor comprising a scintillator crystal coupled to a photo multiplier tube is located in the enclosure, an output from the photo multiplier tube being connected to a signal processor to determine a spectrum for the gamma ray, the signal processor's output being directed to the display device which can be scrolled to display a spectrum of the gamma rays emitted by the source of gamma rays, wherein a GPS is located in the detector whose output can be directed to the display device which can be scrolled to display the detector's location, and wherein the detector is provided with wireless data transmission to transmit data from the display device to other detectors at remote locations.