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Sökning: WFRF:(Muto V)

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1.
  • Abe, K., et al. (författare)
  • Neutron tagging following atmospheric neutrino events in a water Cherenkov detector
  • 2022
  • Ingår i: Journal of Instrumentation. - : Institute of Physics (IOP). - 1748-0221. ; 17:10
  • Tidskriftsartikel (refereegranskat)abstract
    • We present the development of neutron-tagging techniques in Super-Kamiokande IV using a neural network analysis. The detection efficiency of neutron capture on hydrogen is estimated to be 26%, with a mis-tag rate of 0.016 per neutrino event. The uncertainty of the tagging efficiency is estimated to be 9.0%. Measurement of the tagging efficiency with data from an Americium-Beryllium calibration agrees with this value within 10%. The tagging procedure was performed on 3,244.4 days of SK-IV atmospheric neutrino data, identifying 18,091 neutrons in 26,473 neutrino events. The fitted neutron capture lifetime was measured as 218 +/- 9 mu s.
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2.
  • Ficca, G, et al. (författare)
  • Naps, cognition and performance
  • 2010
  • Ingår i: Sleep medicine reviews. - : Elsevier BV. - 1532-2955 .- 1087-0792. ; 14:4, s. 249-258
  • Tidskriftsartikel (refereegranskat)
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3.
  • Muto, S., et al. (författare)
  • TEM and EELS characterization of carbon dust and co-deposited layers from the TEXTOR tokamak
  • 2002
  • Ingår i: Journal of Nuclear Materials. - 0022-3115 .- 1873-4820. ; 307, s. 1289-1293
  • Tidskriftsartikel (refereegranskat)abstract
    • Co-deposited layers and dust agglomerates formed at TEXTOR tokamak were collected and examined in detail by means of transmission electron microscopy and electron energy-loss spectroscopy. The analysis has shown that thick deposits and dust contain mainly carbon with an admixture of boron precipitates and small amounts of other elements. The carbon deposit was mostly amorphous, while strips were graphite crystallites embedded in dust agglomerates. In thin co-deposits on the collector probe very small graphite crystallites were piled up with a preferential orientation. The results are discussed in terms of processes decisive for the erosion of plasma facing components and for the fuel retention.
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