Neutron capture cross section of Mn-53 from irradiation with cold and reactor neutrons

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F20%3AN0000027" target="_blank" >RIV/26722445:_____/20:N0000027 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.aps.org/prc/abstract/10.1103/PhysRevC.102.024613" target="_blank" >https://journals.aps.org/prc/abstract/10.1103/PhysRevC.102.024613</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.102.024613" target="_blank" >10.1103/PhysRevC.102.024613</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Neutron capture cross section of Mn-53 from irradiation with cold and reactor neutrons

Popis výsledku v původním jazyce

The neutron capture cross section of Mn-53 was measured with cold and reactor neutrons by the activation method, relative to the well-known cross section of Co-59. Three targets containing a total of approximate to 10(18) atoms Mn-53 in the form of chloride salt were prepared using a stock solution obtained from activated accelerator waste in the course of the ERAWAST initiative at Paul Scherrer Institute, Switzerland (PSI). Natural cobalt salt was added to the sample material as an internal neutron flux monitor. The total numbers of Mn-53 and Co-59 atoms in the target were deduced via mass spectrometric measurements at PSI. Cold-neutron activation was carried out at the ICON beamline at PSI. Reactor activation was performed at the LVR-15 research reactor of Research Centre Rez in a well-moderated neutron field of an outer reactor channel. The thermal-neutron capture cross section and the resonance integral were determined by the cadmium ratio method. The induced activities of Mn-54 and Co-60 were quantified by high-resolution gamma-ray spectrometry. The obtained thermal-neutron capture cross section of 76.5 +/- 1.4 b agrees well with previously reported results. The uncertainty of this value could be reduced by almost an order of magnitude with respect to older measurements and is on a level comparable to stable nuclides. The resonance integral of 43.1 +/- 1.2 b was obtained for the real reactor spectrum with epithermal-spectrum shape factor alpha = 0.025.

Název v anglickém jazyce

Neutron capture cross section of Mn-53 from irradiation with cold and reactor neutrons

Popis výsledku anglicky

The neutron capture cross section of Mn-53 was measured with cold and reactor neutrons by the activation method, relative to the well-known cross section of Co-59. Three targets containing a total of approximate to 10(18) atoms Mn-53 in the form of chloride salt were prepared using a stock solution obtained from activated accelerator waste in the course of the ERAWAST initiative at Paul Scherrer Institute, Switzerland (PSI). Natural cobalt salt was added to the sample material as an internal neutron flux monitor. The total numbers of Mn-53 and Co-59 atoms in the target were deduced via mass spectrometric measurements at PSI. Cold-neutron activation was carried out at the ICON beamline at PSI. Reactor activation was performed at the LVR-15 research reactor of Research Centre Rez in a well-moderated neutron field of an outer reactor channel. The thermal-neutron capture cross section and the resonance integral were determined by the cadmium ratio method. The induced activities of Mn-54 and Co-60 were quantified by high-resolution gamma-ray spectrometry. The obtained thermal-neutron capture cross section of 76.5 +/- 1.4 b agrees well with previously reported results. The uncertainty of this value could be reduced by almost an order of magnitude with respect to older measurements and is on a level comparable to stable nuclides. The resonance integral of 43.1 +/- 1.2 b was obtained for the real reactor spectrum with epithermal-spectrum shape factor alpha = 0.025.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

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 periodika

Physical Review C

ISSN

0556-2813

e-ISSN

1089-490X

Svazek periodika

102

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

1-9

Kód UT WoS článku

000560032200003

EID výsledku v databázi Scopus

2-s2.0-85092096595