New Measurement of the Thermal-capture Cross Section for the Minor Isotope 180W

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10289529" target="_blank" >RIV/00216208:11320/14:10289529 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.nds.2014.08.026" target="_blank" >http://dx.doi.org/10.1016/j.nds.2014.08.026</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nds.2014.08.026" target="_blank" >10.1016/j.nds.2014.08.026</a>

Jazyk výsledku

angličtina

Název v původním jazyce

New Measurement of the Thermal-capture Cross Section for the Minor Isotope 180W

Popis výsledku v původním jazyce

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,?) measurement using a guided-thermal beam at the Budapest Research Reactor, incident upon an 11.35 % enriched sample to induce prompt ?-ray activation within the sample. The thermal-capture cross section was determined as the sum of experimentally observed partial neutron-capture ?-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

Název v anglickém jazyce

New Measurement of the Thermal-capture Cross Section for the Minor Isotope 180W

Popis výsledku anglicky

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,?) measurement using a guided-thermal beam at the Budapest Research Reactor, incident upon an 11.35 % enriched sample to induce prompt ?-ray activation within the sample. The thermal-capture cross section was determined as the sum of experimentally observed partial neutron-capture ?-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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-07117S" target="_blank" >GA13-07117S: Statistické přístupy ke kvantovým mnohočásticovým systémům</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nuclear Data Sheets

ISSN

0090-3752

e-ISSN

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Svazek periodika

119

Číslo periodika v rámci svazku

neuveden

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

3

Strana od-do

91-93

Kód UT WoS článku

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EID výsledku v databázi Scopus

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