First storage of ultracold neutrons using foils coated with diamond-like carbon

F. Atchison, T. Bryś, M. Daum, P. Fierlinger, P. Geltenbort, R. Henneck, S. Heule, M. Kasprzak, K. Kirch, A. Pichlmaier, C. Plonka, U. Straumann, C. Wermelinger

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

For the first time, ultracold neutrons have been stored in a volume formed of foils coated with diamond-like carbon. The coefficients for loss, η, and depolarization, β, per wall collision were determined simultaneously. The results for different samples, η∼10-4 and β∼10 -5-10-6, are among the best values measured for high Fermi potential materials without elaborate surface pre-treatment. Thin foil storage material will be widely applicable, e.g., in neutron β-decay studies.

Original languageEnglish
Pages (from-to)19-25
Number of pages7
JournalPhysics Letters B
Volume625
Issue number1-2
DOIs
StatePublished - 6 Oct 2005
Externally publishedYes

Keywords

  • Anomalous ultracold neutron losses
  • Diamond-like carbon
  • Ultra-cold neutrons
  • Ultracold neutron storage

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