Storage of very cold neutrons in a trap with nano-structured walls

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• 作者：E.V. Lychagin ; A.Yu. Muzychka ; V.V. Nesvizhevsky ; G. Pignol ; K.V. Protasov ; A.V. Strelkov
• 关键词：Very cold neutrons ; Diamond nanoparticles ; Neutron scattering ; Fundamental particle physics
• 刊名：Physics Letters B
• 出版年：2009
• 出版时间：24 August 2009
• 年：2009
• 卷：679
• 期：3
• 页码：186-190
• 全文大小：936 K

文摘

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.