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Description
  • Timepix pixel detectors have been used to study the response of silicon hybrid pixel detectors to fast neutrons from a pulsed neutron beam at WNR FP30R, a 14 m long flight path, in the Los Alamos Neutron Science Center. Neutrons with kinetic energies up to 600 MeV were available. In order to enhance the conversion of neutrons to energetic charged particles, several converter foils and filters were attached to the 300 μm thick silicon sensor, i.e. polyethylene, polyethylene with aluminum, 6LiF, 6LiF with aluminum, aluminum. The Time-of-Arrival mode of the Timepix detectors has permitted the application of the Time-of-Flight (TOF) technique for the assignment of the detected interactions in the form of clusters (groups of adjacent pixels) in the pixel matrix, to the kinetic energies of the incident neutrons. It was found that, for lower neutron energies (~MeV range) the cluster rates below the polyethylene and the polyethylene and aluminum region, produced by recoil protons, are a good measure for the mean kinetic energies of neutrons. For energies above 50 MeV nuclear reactions in the silicon dominate the detector response. In this energy range the shape of the clusters indicates the neutron kinetic energy.
  • Timepix pixel detectors have been used to study the response of silicon hybrid pixel detectors to fast neutrons from a pulsed neutron beam at WNR FP30R, a 14 m long flight path, in the Los Alamos Neutron Science Center. Neutrons with kinetic energies up to 600 MeV were available. In order to enhance the conversion of neutrons to energetic charged particles, several converter foils and filters were attached to the 300 μm thick silicon sensor, i.e. polyethylene, polyethylene with aluminum, 6LiF, 6LiF with aluminum, aluminum. The Time-of-Arrival mode of the Timepix detectors has permitted the application of the Time-of-Flight (TOF) technique for the assignment of the detected interactions in the form of clusters (groups of adjacent pixels) in the pixel matrix, to the kinetic energies of the incident neutrons. It was found that, for lower neutron energies (~MeV range) the cluster rates below the polyethylene and the polyethylene and aluminum region, produced by recoil protons, are a good measure for the mean kinetic energies of neutrons. For energies above 50 MeV nuclear reactions in the silicon dominate the detector response. In this energy range the shape of the clusters indicates the neutron kinetic energy. (en)
Title
  • Time-of-flight measurement of fast neutrons with Timepix detectors
  • Time-of-flight measurement of fast neutrons with Timepix detectors (en)
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  • Time-of-flight measurement of fast neutrons with Timepix detectors
  • Time-of-flight measurement of fast neutrons with Timepix detectors (en)
skos:notation
  • RIV/68407700:21670/14:00224039!RIV15-MSM-21670___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, P(LG13009), P(LG13031)
http://linked.open...iv/cisloPeriodika
  • 5
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...dnocenehoVysledku
  • 50587
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21670/14:00224039
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Timepix; solid state detectors; hybrid detectors; neutron detectors; fast neutrons; interaction of radiation with matter; time-of-flight (TOF) technique (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [3B73EE440132]
http://linked.open...i/riv/nazevZdroje
  • Journal of Instrumentation
http://linked.open...in/vavai/riv/obor
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http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
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http://linked.open...v/svazekPeriodika
  • 9
http://linked.open...iv/tvurceVysledku
  • Pospíšil, Stanislav
  • Vykydal, Zdeněk
  • Šolc, Jaroslav
  • O'Donnell, J. M.
  • Bergmann, Benedikt Ludwig
  • Nelson, R. O.
  • Takai, H.
http://linked.open...ain/vavai/riv/wos
  • 000340036100048
issn
  • 1748-0221
number of pages
http://bibframe.org/vocab/doi
  • 10.1088/1748-0221/9/05/C05048
http://localhost/t...ganizacniJednotka
  • 21670
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