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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F14%3A10289529%21RIV15-MSM-11320___
rdf:type
n9:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1016/j.nds.2014.08.026
dcterms:description
Tungsten occurs naturally in five isotopic forms; four of them, 182,183,184,186W, contribute significantly to the overall elemental abundance (with each contribution between 14 and 30 %), whereas 180W only occurs at the 0.12 % level and is a minor isotope. Given its very low abundance, a precise measurement of the thermal neutron-capture cross section is extremely challenging. This work reports a new value of the thermal neutron-capture cross section from a direct 180W(n,γ) measurement using a guided-thermal beam at the Budapest Research Reactor, incident upon an 11.35 % enriched sample to induce prompt γ-ray activation within the sample. The thermal-capture cross section was determined as the sum of experimentally observed partial neutron-capture γ-ray cross sections feeding the ground state directly, and, the modeled contribution from the (unobserved) ground-state feeding predicted from statistical-model calculations using the Monte Carlo program DICEBOX. The preliminary value of the 180W(n,γ) thermal neutron-capture cross section is 20.5(42) b. Tungsten occurs naturally in five isotopic forms; four of them, 182,183,184,186W, contribute significantly to the overall elemental abundance (with each contribution between 14 and 30 %), whereas 180W only occurs at the 0.12 % level and is a minor isotope. Given its very low abundance, a precise measurement of the thermal neutron-capture cross section is extremely challenging. This work reports a new value of the thermal neutron-capture cross section from a direct 180W(n,γ) measurement using a guided-thermal beam at the Budapest Research Reactor, incident upon an 11.35 % enriched sample to induce prompt γ-ray activation within the sample. The thermal-capture cross section was determined as the sum of experimentally observed partial neutron-capture γ-ray cross sections feeding the ground state directly, and, the modeled contribution from the (unobserved) ground-state feeding predicted from statistical-model calculations using the Monte Carlo program DICEBOX. The preliminary value of the 180W(n,γ) thermal neutron-capture cross section is 20.5(42) b.
dcterms:title
New Measurement of the Thermal-capture Cross Section for the Minor Isotope 180W New Measurement of the Thermal-capture Cross Section for the Minor Isotope 180W
skos:prefLabel
New Measurement of the Thermal-capture Cross Section for the Minor Isotope 180W New Measurement of the Thermal-capture Cross Section for the Minor Isotope 180W
skos:notation
RIV/00216208:11320/14:10289529!RIV15-MSM-11320___
n3:aktivita
n5:P n5:I
n3:aktivity
I, P(GA13-07117S)
n3:cisloPeriodika
neuveden
n3:dodaniDat
n4:2015
n3:domaciTvurceVysledku
n17:7876009
n3:druhVysledku
n7:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
32423
n3:idVysledku
RIV/00216208:11320/14:10289529
n3:jazykVysledku
n16:eng
n3:klicovaSlova
180W; Isotope; Minor; for; Section; Cross; Thermal-capture; Measurement; New
n3:klicoveSlovo
n11:Thermal-capture n11:Section n11:for n11:Measurement n11:Isotope n11:Cross n11:New n11:Minor n11:180W
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[9E9C45EA4573]
n3:nazevZdroje
Nuclear Data Sheets
n3:obor
n15:BG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
10
n3:projekt
n19:GA13-07117S
n3:rokUplatneniVysledku
n4:2014
n3:svazekPeriodika
119
n3:tvurceVysledku
Firestone, R. B. Krtička, Milan Hurst, A. M. Szentmiklosi, L.
s:issn
0090-3752
s:numberOfPages
3
n20:doi
10.1016/j.nds.2014.08.026
n8:organizacniJednotka
11320