Storage of very cold neutrons in a trap with nano-structured walls
E.V. Lychagin, A.Yu. Muzychka, V.V. Nesvizhevsky, G. Pignol, K.V., Protasov, A.V. Strelkov
TL;DR
This paper demonstrates effective storage of Very Cold Neutrons in a nano-structured trap with diamond nanoparticle walls, enabling long storage times and high neutron densities for energies up to a few times 10^(-4) eV.
Contribution
It introduces a novel neutron storage method using nano-structured walls with diamond nanoparticles, enhancing storage times and neutron density.
Findings
Long VCN storage times achieved
High neutron densities accumulated
Effective elastic scattering at nanoparticles
Abstract
We report on storage of Very Cold Neutrons (VCN) in a trap with walls containing powder of diamond nanoparticles. The efficient VCN reflection is provided by multiple diffusive elastic scattering of VCN at single nanoparticles in powder. The VCN storage times are sufficiently long for accumulating large density of neutrons with complete VCN energy range of up to a few times 10(-4) eV. Methods for further improvements of VCN storage times are discussed.
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