Measurement of very high threshold reactions using Cf-252 source

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F20%3AN0000037" target="_blank" >RIV/26722445:_____/20:N0000037 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/abs/pii/S0969804320305030" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0969804320305030</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apradiso.2020.109355" target="_blank" >10.1016/j.apradiso.2020.109355</a>

Result language

angličtina

Original language name

Measurement of very high threshold reactions using Cf-252 source

Original language description

Only neutron spectrum standard is Cf-252 spontaneous fission neutron spectrum. However, the high energy tail of this spectrum is loaded with high uncertainty. To reduce this uncertainty, it is crucial to use validated cross sections with low uncertainty. The explored set of reactions covers Ni-58(n,X)Co-57, Tm-169(n,3n)Tm-167, Au-197(n,3n)Au-195, Bi-209(n,3n)Bi-207 and Bi-209(n,4n)(206) Bi threshold reactions. Measurement of dosimetric Tm-169(n,3n)Tm-162, Bi-209(n,3n)Bi-207 and Bi-209(n,4n)(206) Bi reactions spectral averaged cross sections (SACS) is included in NEA's High Priority Nuclear Data Request List. All these reactions SACS were measured for the first time. All SACS were derived from experimentally determined reaction rates by gamma spectrometry using the same highpurity germanium detector. In the case of Tm-169(n,3n)(167) Tm reaction, the difference between experimental and calculated value using the IRDFF-II library is only 1.45%. Concerning Au-192(n,3n)(195) Au reaction, the reasonable agreement is achieved only using the TENDL-2017 library. In the case of Bi-209(n,3n)Bi-207 reaction, agreement within uncertainty is not achieved with any library unlike Bi-209(n,4n)(206) Bi reaction where the agreement within uncertainty is achieved with IRDFF-II library. The best agreement for Ni-58(n,X)Co-57 reaction is achieved using ENDF/B-VIII library.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

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

Name of the periodical

Applied Radiation and Isotopes

ISSN

0969-8043

e-ISSN

—

Volume of the periodical

166

Issue of the periodical within the volume

December

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

1-9

UT code for WoS article

000589093400035

EID of the result in the Scopus database

2-s2.0-85089159665