Measurement of cross-sections of yttrium (n,xn) threshold reactions by means of gamma spectroscopy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F14%3A00486426" target="_blank" >RIV/61389005:_____/14:00486426 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.phpro.2014.10.018" target="_blank" >http://dx.doi.org/10.1016/j.phpro.2014.10.018</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.phpro.2014.10.018" target="_blank" >10.1016/j.phpro.2014.10.018</a>

Result language

angličtina

Original language name

Measurement of cross-sections of yttrium (n,xn) threshold reactions by means of gamma spectroscopy

Original language description

Neutron activation and gamma spectrometry are usable also for the determination of cross-sections of different neutron reactions. We have studied the cross-section of yttrium ( n,xn) threshold reactions using quasi mono-energetic neutron source based on the reaction on Li-7 target at Nuclear Physics Institute of ASCR in Rez. Yttrium ( n, xn) threshold reactions are suitable candidates for fast neutron field measurement by activation detectors. Fast neutron field monitoring is necessary already today at a wide range of accelerator facilities and will gain on importance in future fast reactors of generation IV, accelerator transmutation systems or fusion reactors. The knowledge of the cross-sections is crucial for such purpose. Unfortunately, the cross-section is sufficiently known only for Y-89( n,2n)Y-88 reaction. For higher orders of reactions there are almost no experimental data. Special attention was paid to the Y-89(n,3n)Y-87 reaction. The nuclei are produced, both in the ground state with half-life 79.8 hours and in the isomeric state with half-life 13.38 hours. The isomer decays mainly through the gamma transition to the ground state, the beta decay of the excited state is negligible within our accuracy. The cross-sections of both Y-87 productions were analyzed.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10304 - Nuclear physics

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Article name in the collection

Physics Procedia

ISBN

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ISSN

1875-3892

e-ISSN

—

Number of pages

5

Pages from-to

114-118

Publisher name

Elsevier Science BV

Place of publication

Amsterdam

Event location

Belgrade

Event date

Sep 24, 2013

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000380878100017