Patent ID: 8921801

Claim:
A γ-radiation detection system that detects a γ-radiation from a target, comprising: a neutron-generator that generates an α-particle and neutron pair, and emits the α-particle and the neutron in opposite directions, in which the neutron is focused on a target within a predetermined direction; an α-particle detector that detects the α-particle emitted from the neutron generator and identifies the direction of the neutron on the target; a γ-radiation semiconductor detector that detects the γ-radiation emitted from the target irradiated by the neutron within the predetermined direction; a data unit configured to acquire data related to energy of the γ-radiation when the γ-radiation semiconductor detector detects the γ-radiation; and a control unit configured to calculate a time-of-flight of the neutron by comparing a time when the α-particle detector detects the α-particle and a time when the γ-radiation semiconductor detector detects the γ-radiation within the predetermined direction, and determine whether the γ-radiation is received within a predetermined coincidence window; wherein the data unit is further configured to initiate the data acquisition process upon detection of a γ-radiation signal without waiting for the determination by the control unit, and wherein the control unit is further configured to allow the data unit to continue and complete the data acquisition process, when it is determined that the detected γ-radiation falls within the predetermined coincidence window, and to stop the data acquisition process when it is determined that the timing of the detected γ-radiation does not fall within the predetermined coincidence window.