Abstract: An auxiliary neutron detector apparatus designed for attaching and supplementation to an existing gamma-ray spectrometer adds improved neutron detection capabilities. The apparatus uses the existing detector and so does not require additional detector materials, including 3He, which are required by conventional neutron detector attachments. Because of the cost and limited availability of detector materials, this invention is particularly valuable for upgrading systems without existing neutron detector, and for repairing systems with damaged neutron detectors.

Abstract: An auxiliary neutron detector apparatus designed for attaching and supplementation to an existing gamma-ray spectrometer adds improved neutron detection capabilities. The apparatus uses the existing detector and so does not require additional detector materials, including 3He, which are required by conventional neutron detector attachments. Because of the cost and limited availability of detector materials, this invention is particularly valuable for upgrading systems without existing neutron detector, and for repairing systems with damaged neutron detectors.

Abstract: The present invention comprises a spectrometer (100) for detecting a source of radioactive emissions having a detector (120) that produces a detector signal (20), with an amplifier (30) followed by a single digitizer (40) followed by a digital signal processing unit (50), within which the signal processing implements two distinct pathways (51, 52), and associated firmware to utilize the two resulting sets of processed data in nuclear isotope identification.