The activation of Zr-nat by quasi-monoenergetic neutrons below 34 MeV.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00542159" target="_blank" >RIV/61389005:_____/20:00542159 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/epjconf/202023920005" target="_blank" >http://dx.doi.org/10.1051/epjconf/202023920005</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/202023920005" target="_blank" >10.1051/epjconf/202023920005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The activation of Zr-nat by quasi-monoenergetic neutrons below 34 MeV.

Popis výsledku v původním jazyce

Good knowledge of cross section neutron induced reactions on Zr becomes of importance due to the use of zirconium as structural material in reactors, its applicability in neutron dosimetry and the theoretical model testing. Thin Zr foils (0.05 mm thickness, 99.2% purity) were irradiated in the quasi-monoenergetic p-Li neutron fields, the proton beams from NPI CAS variable-energy cyclotron U120M at proton energies 20.33, 22.44, 24.69, 27.64, 29.85, 32.31 and 35.11 MeV. Li target with carbon stopper was used for the generation of neutron flux. The reaction Li-7 (p,n) produces the high-energy quasi-monoenergetic neutrons with a tail to lower energies. The flux density and neutron spectra were evaluated by MCNPX code and validated with set of measurements including Time-Of-Flight and Proton recoil Telescope and additional activation monitors. The pneumatic tranfer system enables the investigation of short living isotopes. The foil activity determination was performed by the nuclear spectrometry method employing two calibrated HPGe detectors. The reaction rates for Zr-nat(n,*)Zr-89m,Zr-89g,Zr-89, (87m,87,88,89m,90m,91m,92,93,94,95)y and Sr-87m,Sr-91,Sr-92 were obtained and cross sections were extracted. The preliminary results are discussed.

Název v anglickém jazyce

The activation of Zr-nat by quasi-monoenergetic neutrons below 34 MeV.

Popis výsledku anglicky

Good knowledge of cross section neutron induced reactions on Zr becomes of importance due to the use of zirconium as structural material in reactors, its applicability in neutron dosimetry and the theoretical model testing. Thin Zr foils (0.05 mm thickness, 99.2% purity) were irradiated in the quasi-monoenergetic p-Li neutron fields, the proton beams from NPI CAS variable-energy cyclotron U120M at proton energies 20.33, 22.44, 24.69, 27.64, 29.85, 32.31 and 35.11 MeV. Li target with carbon stopper was used for the generation of neutron flux. The reaction Li-7 (p,n) produces the high-energy quasi-monoenergetic neutrons with a tail to lower energies. The flux density and neutron spectra were evaluated by MCNPX code and validated with set of measurements including Time-Of-Flight and Proton recoil Telescope and additional activation monitors. The pneumatic tranfer system enables the investigation of short living isotopes. The foil activity determination was performed by the nuclear spectrometry method employing two calibrated HPGe detectors. The reaction rates for Zr-nat(n,*)Zr-89m,Zr-89g,Zr-89, (87m,87,88,89m,90m,91m,92,93,94,95)y and Sr-87m,Sr-91,Sr-92 were obtained and cross sections were extracted. The preliminary results are discussed.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

EPJ Web of Conferences

ISBN

978-2-7598-9106-1

ISSN

2100-014X

e-ISSN

—

Počet stran výsledku

4

Strana od-do

20005

Název nakladatele

E D P Sciences

Místo vydání

Les Ulis

Místo konání akce

Beijing

Datum konání akce

19. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000627114700191