منابع مشابه
Neutron Cross Sections for Some Threshold Reactions
Three neutron reactions leading to production of the rare gases Ar41 and Xe135 have been in vestigated. Single crystal samples of KF, CaF2 , and BaF2 were irradiated in the Berlin reactor and the target-free absolute activities of the rare gas isotopes measured by a /^-/-coincidence method. The calculated cross sections are K41 (n,p)Ar41: o = ( 2 ,73±0,41) mb; o0= (98,6± 14,8) mb; Ca44(n,a)Ar4...
متن کاملNeutron Cross Sections for Nucleosynthesis Studies
Previous compilations of (n, γ ) cross sections of relevance for neutron capture nucleosynthesis in the big bang and in the slow neutron capture process (s process) have been updated to encompass information available up to December 1998; data references include work in process then and published subsequently. The experimental results for nuclei between H and Bi were critically surveyed, renorm...
متن کاملNormalization of neutron-proton differential cross sections
The np differential cross section below 350 MeV neutron laboratory energy is studied using the energy-dependent Nijmegen partial-wave analysis PWA93. We analyze in detail three experiments, performed at LAMPF, at TRIUMF, and at the TSL facility in Uppsala. The issue of normalization of np cross sections is discussed, where we distinguish between measured and calculated normalizations. This anal...
متن کاملNeutron Capture Cross Sections of Cadmium Isotopes
The neutron capture cross sections of 106 Cd, 108 Cd, 110 Cd, 112 Cd, 114 Cd and 116 Cd were determined in the present project. Four different OSU TRIGA reactor facilities were used to produce redundancy in the results and to measure the thermal cross section and resonance integral separately. When the present values were compared with previously measured values, the differences were mostly due...
متن کاملAngle-dependent normalization of neutron-proton differential cross sections
Systematic errors in the database of np differential cross sections below 350 MeV are studied. By applying angle-dependent normalizations the χ-values of some seriously flawed data sets can be reduced significantly at the expense of a few degrees of freedom. The renormalized data sets can be made statistically acceptable such that they do not have to be discarded any longer in partialwave analy...
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ژورنال
عنوان ژورنال: The European Physical Journal Plus
سال: 2018
ISSN: 2190-5444
DOI: 10.1140/epjp/i2018-12295-3