Determination of the Bi209(n,γ)Bi210g cross section using the NICE detector
| Autor: | Rene Reifarth, B. Thomas, Klaus Eberhardt, M. Volknandt, Erik Borris, S. Fiebiger, Kathrin Göbel, Tanja Heftrich, Christoph Langer, Roman Gernhäuser, Markus Reich, P. Erbacher, B. Brückner, T. Kisselbach, K. Al-Khasawneh, Mario Weigand, Deniz Kurtulgil |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Physical Review C. 103 |
| ISSN: | 2469-9993 2469-9985 |
| DOI: | 10.1103/physrevc.103.065805 |
| Popis: | The capture cross section of $^{209}\mathrm{Bi}(n,\ensuremath{\gamma})^{210g}\mathrm{Bi}$ was measured at different astrophysically relevant energies including thermal capture cross section (25 meV), resonance integral, and the Maxwellian averaged cross section at a thermal energy of $kT=30$ keV. The partial capture cross section $({\ensuremath{\sigma}}_{g})$ was determined using the activation technique and by measuring the $^{210}\mathrm{Po}$ activity. The newly developed and tested NICE detector setup was used to measure the $\ensuremath{\alpha}$ activity of the $^{210}\mathrm{Po}$. Using this setup the thermal and resonance integral cross sections were determined to be $16.2\phantom{\rule{0.28em}{0ex}}\ifmmode\pm\else\textpm\fi{}\phantom{\rule{0.28em}{0ex}}0.97$ mb and $89.81\phantom{\rule{0.28em}{0ex}}\ifmmode\pm\else\textpm\fi{}\phantom{\rule{0.28em}{0ex}}8.0$ mb, respectively. And the Maxwellian average cross section was measured to be $2.01\phantom{\rule{0.28em}{0ex}}\ifmmode\pm\else\textpm\fi{}\phantom{\rule{0.28em}{0ex}}0.38$ mb. |
| Databáze: | OpenAIRE |
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