Background: Real-time

fast

accurate

nondestructive inspection(NDI) and quantitative analysis for chemical warfares are very imperative for chemical defense

anti-terror and nation security. Purpose: Associated Particles Technique(APT)/Neutron Time of Flight(TOF) has been developed for non-invasive inspection of sealed containers with chemical warfare agents. Methods: A prototype equipment for chemical warfare is consisted of an APT neutron generator with a 3×3 matrix of semiconductor detectors of associated alpha-particles

the shielding protection of neutron and gamma-ray

arrayed NaI(Tl)-based detectors of gamma-rays

fully-digital data acquisition electronics

data analysis

decision-making software

support platform and remote control system. Inelastic scattering gamma-ray pulse height spectra of sarin

VX

mustard gas and adamsite induced by 14-MeV neutron are measured.The energies of these gamma rays are used to identify the inelastic scattering elements

and the intensities of the peaks at these energies are used to reveal their concentrations. Results: The characteristic peaks of inelastic scattering gamma-ray pulse height spectra show that the prototype equipment can fast and accurately inspect chemical warfare.Conclusion: The equipment can be used to detect not only chemical warfare agents but also other hazardous materials

such as chemical/toxic/drug materials

if their chemical composition is in any way different from that of the surrounding materials.