FIELD: nuclear physics.
SUBSTANCE: invention relates to a method of detecting nuclear substance by neutron survey. Method of detecting nuclear substance in an object analysed by neutron examination by means of tube connected particles, comprises steps of detecting pulses match with using pixels-detectors at least one pixel detector array, wherein detection step causes event, which reflects Division occurring in a nuclear substance, method includes detection of adjacent pixels among pixels of detecting pulses match, Hofmann adjacent pixels on group of neighbouring pixels, counting pixels and/or groups of adjacent pixels detecting coincidence pulses, and confirmation of occurrence, as soon as at least three adjacent pixel and/or group of pixels are counted.
EFFECT: technical result is high efficiency of detecting nuclear substance.
9 cl, 7 dwg
