High-Energy Neutron Concentration Far from a Source

High-Energy Neutron Concentration Far from a Source

The concentration of neutron radiation far from a source is discussed. A new method is proposed for solving this problem by choosing from among the scattered neutrons the ones that have acquired the required direction of flight and energy. The material along which such a neutron will travel must pos...

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Veröffentlicht in:Atomic energy (New York, N.Y.) N.Y.), 2016-07, Vol.120 (3), p.177-181
Hauptverfasser: Velikhov, E. P., Tsibul’skii, V. F., Gurevich, M. I., Davidenko, V. D., Kovalishin, A. A., Andrianova, E. A., Blandinskii, V. Yu, Rodionova, E. V.
Format: Artikel
Sprache:eng
Schlagworte:
Analysis
Anisotropy
Atomic energy
Cross sections
Energy
Hadrons
Heavy Ions
Isotopes
Materials science
Neutrons
Nuclear Chemistry
Nuclear cross sections
Nuclear Energy
Nuclear Physics
Nuclear power generation
Nuclear reactors
Physics
Physics and Astronomy
Radiation
Studies
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Zusammenfassung:The concentration of neutron radiation far from a source is discussed. A new method is proposed for solving this problem by choosing from among the scattered neutrons the ones that have acquired the required direction of flight and energy. The material along which such a neutron will travel must possess a small neutron cross section at the given energy. Materials consisting of isotopes with a large resonance cross section, for example, 56 Fe, meet the requirements. The method discussed for concentrating high-energy neutrons makes it possible to increase their concentration more than 1000-fold in the detection area far from the source compared with isotropic propagation away from the source in all directions with equal probability.
ISSN:1063-4258
1573-8205
DOI:10.1007/s10512-016-0114-y