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Description
  • The neutron capture reaction is useful in identifying and analyzing the gamma-ray spectrum from an unknown assembly as it gives unambiguous information on its composition. This can be done passively or actively where an external neutron source is used to probe an unknown assembly. There are known capture gamma-ray data gaps in the ENDS libraries used by transport codes for various nuclear applications. The Evaluated Gamma-ray Activation file (EGAF) is a new thermal neutron capture database of discrete line spectra and cross sections for over 260 isotopes that was developed as part of an IAEA Coordinated Research Project. EGAF has been used to improve the capture gamma production in ENDF libraries. For medium to heavy nuclei the quasi continuum contribution to the gamma cascades is not; experimentally resolved. The continuum contains up to 90% of all the decay energy and is modeled here with the statistical nuclear structure code DICEBOX. This code also provides a consistency check of the level scheme nuclear structure evaluation. The calculated continuum is of sufficient accuracy to include in the ENDF libraries. This analysis also determines new total thermal capture cross sections and provides an improved RIPL database. For higher energy neutron capture there is less experimental data. available making benchmarking of the modeling codes more difficult. We use CASINO, a version of DICEBOX that is modified for this purpose. This can be used to simulate the neutron capture at incident neutron energies up to 20 MeV to improve the gamma-ray spectrum in neutron data, libraries used for transport; modeling of unknown assemblies.
  • The neutron capture reaction is useful in identifying and analyzing the gamma-ray spectrum from an unknown assembly as it gives unambiguous information on its composition. This can be done passively or actively where an external neutron source is used to probe an unknown assembly. There are known capture gamma-ray data gaps in the ENDS libraries used by transport codes for various nuclear applications. The Evaluated Gamma-ray Activation file (EGAF) is a new thermal neutron capture database of discrete line spectra and cross sections for over 260 isotopes that was developed as part of an IAEA Coordinated Research Project. EGAF has been used to improve the capture gamma production in ENDF libraries. For medium to heavy nuclei the quasi continuum contribution to the gamma cascades is not; experimentally resolved. The continuum contains up to 90% of all the decay energy and is modeled here with the statistical nuclear structure code DICEBOX. This code also provides a consistency check of the level scheme nuclear structure evaluation. The calculated continuum is of sufficient accuracy to include in the ENDF libraries. This analysis also determines new total thermal capture cross sections and provides an improved RIPL database. For higher energy neutron capture there is less experimental data. available making benchmarking of the modeling codes more difficult. We use CASINO, a version of DICEBOX that is modified for this purpose. This can be used to simulate the neutron capture at incident neutron energies up to 20 MeV to improve the gamma-ray spectrum in neutron data, libraries used for transport; modeling of unknown assemblies. (en)
Title
  • Capture Gamma-ray Libraries for Nuclear Applications
  • Capture Gamma-ray Libraries for Nuclear Applications (en)
skos:prefLabel
  • Capture Gamma-ray Libraries for Nuclear Applications
  • Capture Gamma-ray Libraries for Nuclear Applications (en)
skos:notation
  • RIV/00216208:11320/11:10106184!RIV12-MSM-11320___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM0021620859)
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 189141
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11320/11:10106184
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • LANSCE; Detector; DANCE; Using; keV; 100; Spectra; Gamma-emission; Section; Cross; Neutron-capture; 238U; Measurement (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • KR - Korejská republika
http://linked.open...ontrolniKodProRIV
  • [22F886A808D5]
http://linked.open...i/riv/nazevZdroje
  • Journal of the Korean Physical Society
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 59
http://linked.open...iv/tvurceVysledku
  • Escher, J.
  • Krtička, Milan
  • Sleaford, B.
  • Summers, N.
http://linked.open...ain/vavai/riv/wos
  • 000294080700004
http://linked.open...n/vavai/riv/zamer
issn
  • 0374-4884
number of pages
http://bibframe.org/vocab/doi
  • 10.3938/jkps.59.1473
http://localhost/t...ganizacniJednotka
  • 11320
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