The invention relates to the technical field of
neutron dose and internal
pollution diagnosis, and provides a
neutron dose and internal
pollution diagnosis method and
diagnostic agent.The method comprises the following steps that
gamma ray signals are obtained at the head top and the
lung of a
human body through a detection device, and gamma rays are converted into electric pulse signals through the detection device; a digital multi-channel
signal processing device is used for conducting
signal processing on the electric pulse signals,
signal processing comprises digital filtering and
peak value sampling, and
energy spectrum data are obtained; analyzing the
energy spectrum data, and respectively obtaining a Na-24 characteristic
gamma photon peak value at the top of the head of the
human body and a characteristic
gamma photon peak value at the
lung of the
human body; and according to the Na-24 characteristic
gamma photon peak value obtained at the top of the head, calculating the
neutron exposure dose according to a
neutron dose algorithm, and according to the characteristic gamma
photon peak value obtained at the
lung, determining the type and activity of the internal
pollution nuclide. According to the invention, accurate calculation of
neutron dose and identification and activity determination of internal pollution
nuclide are realized, and dual functions of neutron
exposure dose and internal pollution diagnosis can be provided at the same time.