Studies on the detection of concealed objects using the neutron reflection method
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Updated: May 13, 2026

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
Published on: May 7, 2021
1Institute of Nuclear Research of the Hungarian Academy of Sciences, (ATOMKI), 4001 Debrecen, Pf. 51, Hungary. papppa@atomki.hu
Abstract:
The increment of reflected thermal and 1.45 eV resonance neutrons vs. the thickness of the reflector has been measured and described by an analytical expression. Macroscopic, Σβ, and microscopic, σβ, reflection cross sections averaged over the bulk reflector substances were deduced for some elements and compounds. It was found that the σβ values are additive even for bulk samples and so the σβmol could be given for some illicit drugs, explosives and hiding materials.
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