Validation of Nuclear Data using Lawrence Livermore Pulsed Sphere Experiments

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Abstract

Starting from the late ‘60s, a series of pulsed sphere experiments have been performed at Lawrence Livermore National Laboratory (LLNL) where an almost isotropic 14 MeV neutron source (produced by a T(d,n)4He reaction) was placed at the center of a spherical target assembly. These pulsed sphere experiments are a lot more sensitive to cross section data and even angular distributions when compared to integral benchmarks. This aspect alone makes them prime candidates for validating nuclear data because even the smallest differences will be very clear. In this paper, we will discuss the results from simulating pulsed sphere experiments on materials such as liquid oxygen, magnesium, lead, bismuth, titanium, iron, concrete and 239Pu. Some of these examples (for instance the magnesium spheres) will illustrate the power of this type of experiments.

Details

Original languageEnglish
Title of host publicationThe American nuclear Society's 14th Biennial Topical Meeting of the Radiation Protection and Shielding Division
Place of PublicationLa Grange park, United States
Pages139-154
Volume1
Publication statusPublished - 2 Apr 2006
Event2006 - ANS - 14th Biennial Topical Meeting of the Radiation Protection and Shielding Division (RPSD) - ANS, Carlsbad, United States
Duration: 2 Apr 20066 Apr 2006

Conference

Conference2006 - ANS - 14th Biennial Topical Meeting of the Radiation Protection and Shielding Division (RPSD)
CountryUnited States
CityCarlsbad
Period2006-04-022006-04-06

Keywords

  • nuclear data, validation

ID: 275503