Detection of buried explosives using portable neutron sources with nanosecond timing.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

PubMedID: 15145438

Kuznetsov AV, Evsenin AV, Gorshkov IY, Osetrov OI, Vakhtin DN. Detection of buried explosives using portable neutron sources with nanosecond timing. Appl Radiat Isot. 2004;61(1):51-7.
Significant reduction of time needed to identify hidden explosives and other hazardous materials by the "neutron in, gamma out" method has been achieved by introducing timed (nanosecond) neutron sources-the so-called nanosecond neutron analysis technique. Prototype mobile device for explosives' detection based on a timed (nanosecond) isotopic (252)Cf neutron source has been created. The prototype is capable of identifying 400 g of hidden explosives in 10 min. Tests have been also made with a prototype device using timed (nanosecond) neutron source based on a portable D-T neutron generator with built-in segmented detector of accompanying alpha-particles. The presently achieved intensity of the neutron generator is 5x10(7)n/s into 4pi, with over 10(6) of these neutrons being correlated with alpha-particles detected by the built-in alpha-particle detector. Results of measurements with an anti-personnel landmine imitator are presented.