Neutron attenuation in some polymer composite material

Cherkashina, N.I.; Pavlenko, V.I.; Shkaplerov, A.N.; Kuritsyn, A.A.; Sidelnikov, R.V.; Popova, E.V.; Umnova, L.A.; Domarev, S.N.

doi:10.1016/j.asr.2023.12.003

Cited by 5 publications

(1 citation statement)

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“…The space neutron shielding capabilities of a polymer composite material based on poly-tetra-fluoro-ethylene, Bi 2 O 3 bismuth oxide, WC tungsten carbide, B 4 C boron carbide, TiH 1.7 titanium hydride were studied. It has been reported that this material can be used to protect astronauts and radio-electronic equipment from the effects of space neutrons, and can also be used to ensure radiation safety for the crews of ships with mobile nuclear reactors, such as atomic submarines and nuclear submarines, and nuclear-powered icebreakers [8]. In another study the neutron shielding performances of polyaniline-based composites filled with different amounts of formic acid, boron nitride, and boric acid were investigated.…”

Section: Introductionmentioning

confidence: 99%

Detailed Monte Carlo simulations on secondary radiation emissions of polymer based neutron shielding materials

Korkut,

Korkut

2024

Phys. Scr.

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Since radiation safety is a sensitive issue in terms of health, this situation poses a significant problem. In order to raise awareness among researchers while preparing future studies on this problem, in this study, the interactions between fast neutrons and 10 different polymer-based shielding materials determined from the literature were modeled with the GEANT4 Monte Carlo code. The fast neutron shielding performances of the samples and the emitted secondary radiation and radioactivity have been reported. When evaluated number and mean energies of created particles, in order to solve this problem, the sum of the risk factors obtained by multiplying these values for each sample can provide us with the opportunity to make a more accurate evaluation. When these values are examined, sample P9 is at the top of the risk ranking with a value of 1823472, while sample P6 is at the bottom with a value of 146246. As a result, it has been revealed that these samples, which have good fast neutron shielding properties, also produce high levels of radiation and radioactive nuclei.

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Section: Introductionmentioning

confidence: 99%