Patent ID: 7964852

Claim:
A detector array including: a plurality of neutron detectors, wherein each neutron detector including: an anode; and a cathode including a layer of neutron sensitive boron material; a plurality of gamma detectors engaged against neutron detectors within the array, wherein each gamma detector including: an anode; and a cathode that does not include a layer of neutron sensitive boron material; a plurality of stacked, undulated substrate sheets having plural sides and extending at spaced distances from anode axes within the array with the sheets and providing cathode substrates, each pair of adjacent sheets bounding a series of volumes for detectors with anodes extending within the volumes at the anode axes and along the plural sides of the substrate sheets, and the substrate sheets having the layer of neutron sensitive boron material on at least some sides to provide neutron detector cathodes and the substrate sheets not having a layer of neutron sensitive boron material on at least some sides to provide gamma detector cathodes.