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Träfflista för sökning "WFRF:(Bevilacqua Riccardo 1974 ) ;pers:(Naitou Yuuki)"

Sökning: WFRF:(Bevilacqua Riccardo 1974 ) > Naitou Yuuki

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1.
  • Bevilacqua, Riccardo, 1974-, et al. (författare)
  • Light-ion production in the interaction of 175 MeV neutrons with iron and bismuth
  • 2011
  • Ingår i: Journal of Korean Physical Society.
  • Konferensbidrag (refereegranskat)abstract
    • We have measured double-differential (angle and energy) cross sections for light-ion (p, d, t, 3He and α) production in the interaction of quasi-monoenergetic 175 MeV neutrons with iron and bismuth. Measurements have been performed at the The Svedberg Laboratory, Uppsala (Sweden), using the Medley setup which allows low-energy thresholds and wide energy and angular ranges. Medley is a spectrometer system consisting of eight three-element telescopes placed at angles from 20◦ to 160◦, in steps of 20◦. Each telescope is composed of two silicon surface barrier detectors and a CsI(Tl) scintillator, to perform particle identification,fully stop the produced light-ions and measure their kinetic energy. The time-of-flight was used to reduce the contribution from the low energy tail in the accepted incident neutron spectrum. We report double-differential production cross sections for protons, deuterons, tritons, 3He and α particles and compare them with model calculations with TALYS-1.2.
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2.
  • Bevilacqua, Riccardo, 1974-, et al. (författare)
  • Medley spectrometer for light ions in neutron-induced reactions at 175 MeV
  • 2011
  • Ingår i: Nuclear Instruments and Methods in Physics Research Section A. - : Elsevier BV. - 0168-9002 .- 1872-9576. ; 646:1, s. 100-107
  • Tidskriftsartikel (refereegranskat)abstract
    • We have upgraded the Medley spectrometer to measure neutron-induced double differential cross-sections for light-ion production, with neutron energies up to 175 MeV. Measurements were performed at the quasi-monoenergetic neutron beam line at the The Svedberg Laboratory, in Uppsala (Sweden). Medley is a spectrometer system composed of eight three-element telescope detectors; Delta E-E technique is used for particle identification and total kinetic energy measurement. We have improved particle separation and installed new detectors that fully stop ions with kinetic energy up to 170 MeV. To reduce the contribution of the low energy tail in the quasi-monoenergetic neutron spectrum, we have applied time-of-flight techniques and investigated the results for measurements with 175 MeV neutrons. We have investigated the response function of the CsI(Tl) scintillators and describe a method for efficiency correction. We have studied the signal-to-background ratio of the new configuration of the spectrometer and of the collimation system. A method to obtain absolute cross-section normalization, separating the peak neutrons from the low-energy tail, is proposed. Finally we have characterized the 175 MeV quasi-monoenergetic neutron spectrum with the Medley spectrometer. This upgraded configuration has been used in 2007 and 2009 for light-ion production measurements at 175 MeV from C, Si, O, Fe, Bi and U.
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4.
  • Hirayama, Shusuke, et al. (författare)
  • Production of protons, deuterons, and tritons from carbon bombarded by 175 MeV quasi mono-energetic neutrons
  • 2011
  • Ingår i: Progress in Nuclear Science and Technology. - : Atomic Energy Society of Japan. ; 1, s. 69-72
  • Tidskriftsartikel (refereegranskat)abstract
    • We have measured double-differential yields of protons, deuterons, and tritons produced from carbon induced by 175 MeV quasi mono-energetic neutrons using the MEDLEY setup at the TSL neutron beam facility. The measured data are used for benchmarking of a high-energy nuclear data file, JENDL/HE-2007, and both intra-nuclear cascade (INC) model and quantum molecular dynamics (QMD) calculations.
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  • Resultat 1-5 av 5

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