Chemical composition identification using fast neutrons.

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

PubMedID: 15145441

Sudac D, Blagus S, Valkovic V. Chemical composition identification using fast neutrons. Appl Radiat Isot. 2004;61(1):73-9.
Measurements of characteristic gamma ray spectra resulting from A(n, n'gamma)A reactions induced by 14 eV neutrons on different bulk samples (graphite, water, melamin) were performed. Of particular importance are results of experiments with objects buried in the soil. It has been shown that samples of graphite can be identified when buried under 10 m of soil. NaI(Tl) and BaF(2) scintilators were used as gamma ray detectors. Background radiation was reduced by the associated alpha particle technique.