Advances in Radiative Capture Studies at LUNA with a Segmented BGO Detector
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2025
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| author | Skowronski, Jakub Gesuè, Riccardo Maria Boeltzig, Axel Ciani, Giovanni Francesco Piatti, Denise Rapagnani, David Aliotta, Marialuisa Ananna, Chemsedinne Barile, Francesco Bemmerer, Daniel Best, Andreas Broggini, Carlo Bruno, Carlo Giovanni Caciolli, Antonio Campostrini, Matteo Cavanna, Francesca Colombetti, Paolo Compagnucci, Alessandro Corvisiero, Piero Csedreki, Laszlo Davinson, Tom Depalo, Rosanna Di Leva, Antonino Elekes, Zoltan Ferraro, Federico Formicola, Alba Fülöp, Zsolt Gervino, Gianpiero Guglielmetti, Alessandra Gustavino, Carlo Gyürky, György Imbriani, Gianluca Junker, Matthias Lugaro, Maria Marigo, Paola Masha, Eliana Menegazzo, Roberto Paticchio, Vincenzo Perrino, Roberto Prati, Paolo Rigato, Valentino Schiavulli, Luigi Sidhu, Ragandeep Singh Straniero, Oscar Szűcs, Tamás Zavatarelli, Sandra |
| author_facet | Skowronski, Jakub Gesuè, Riccardo Maria Boeltzig, Axel Ciani, Giovanni Francesco Piatti, Denise Rapagnani, David Aliotta, Marialuisa Ananna, Chemsedinne Barile, Francesco Bemmerer, Daniel Best, Andreas Broggini, Carlo Bruno, Carlo Giovanni Caciolli, Antonio Campostrini, Matteo Cavanna, Francesca Colombetti, Paolo Compagnucci, Alessandro Corvisiero, Piero Csedreki, Laszlo Davinson, Tom Depalo, Rosanna Di Leva, Antonino Elekes, Zoltan Ferraro, Federico Formicola, Alba Fülöp, Zsolt Gervino, Gianpiero Guglielmetti, Alessandra Gustavino, Carlo Gyürky, György Imbriani, Gianluca Junker, Matthias Lugaro, Maria Marigo, Paola Masha, Eliana Menegazzo, Roberto Paticchio, Vincenzo Perrino, Roberto Prati, Paolo Rigato, Valentino Schiavulli, Luigi Sidhu, Ragandeep Singh Straniero, Oscar Szűcs, Tamás Zavatarelli, Sandra |
| contents | Studies of charged-particle reactions for low-energy nuclear astrophysics require high sensitivity, which can be achieved by means of detection setups with high efficiency and low backgrounds, to obtain precise measurements in the energy region of interest for stellar scenarios. High-efficiency total absorption spectroscopy is an established and powerful tool for studying radiative capture reactions, particularly if combined with the cosmic background reduction by several orders of magnitude obtained at the Laboratory for Underground Nuclear Astrophysics (LUNA). We present recent improvements in the detection setup with the Bismuth Germanium Oxide (BGO) detector at LUNA, aiming to reduce high-energy backgrounds and to increase the summing detection efficiency. The new design results in enhanced sensitivity of the BGO setup, as we demonstrate and discuss in the context of the first direct measurement of the 65 keV resonance ($E_{x} = 5672$ keV) of the $^{17}$O($p,γ$)$^{18}$F reaction. Moreover, we show two applications of the BGO detector, which exploit its segmentation. In case of complex $γ$-ray cascades, e.g. the de-excitation of $E_{x} = 5672$ keV in $^{18}$F, the BGO segmentation allows to identify and suppress the beam-induced background signals that mimic the sum peak of interest. We demonstrate another new application for such a detector in form of in-situ activation measurements of a reaction with $β^{+}$ unstable product nuclei, e.g., the $^{14}$N($p,γ$)$^{15}$O reaction. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_05939 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Advances in Radiative Capture Studies at LUNA with a Segmented BGO Detector Skowronski, Jakub Gesuè, Riccardo Maria Boeltzig, Axel Ciani, Giovanni Francesco Piatti, Denise Rapagnani, David Aliotta, Marialuisa Ananna, Chemsedinne Barile, Francesco Bemmerer, Daniel Best, Andreas Broggini, Carlo Bruno, Carlo Giovanni Caciolli, Antonio Campostrini, Matteo Cavanna, Francesca Colombetti, Paolo Compagnucci, Alessandro Corvisiero, Piero Csedreki, Laszlo Davinson, Tom Depalo, Rosanna Di Leva, Antonino Elekes, Zoltan Ferraro, Federico Formicola, Alba Fülöp, Zsolt Gervino, Gianpiero Guglielmetti, Alessandra Gustavino, Carlo Gyürky, György Imbriani, Gianluca Junker, Matthias Lugaro, Maria Marigo, Paola Masha, Eliana Menegazzo, Roberto Paticchio, Vincenzo Perrino, Roberto Prati, Paolo Rigato, Valentino Schiavulli, Luigi Sidhu, Ragandeep Singh Straniero, Oscar Szűcs, Tamás Zavatarelli, Sandra Nuclear Experiment Instrumentation and Detectors Studies of charged-particle reactions for low-energy nuclear astrophysics require high sensitivity, which can be achieved by means of detection setups with high efficiency and low backgrounds, to obtain precise measurements in the energy region of interest for stellar scenarios. High-efficiency total absorption spectroscopy is an established and powerful tool for studying radiative capture reactions, particularly if combined with the cosmic background reduction by several orders of magnitude obtained at the Laboratory for Underground Nuclear Astrophysics (LUNA). We present recent improvements in the detection setup with the Bismuth Germanium Oxide (BGO) detector at LUNA, aiming to reduce high-energy backgrounds and to increase the summing detection efficiency. The new design results in enhanced sensitivity of the BGO setup, as we demonstrate and discuss in the context of the first direct measurement of the 65 keV resonance ($E_{x} = 5672$ keV) of the $^{17}$O($p,γ$)$^{18}$F reaction. Moreover, we show two applications of the BGO detector, which exploit its segmentation. In case of complex $γ$-ray cascades, e.g. the de-excitation of $E_{x} = 5672$ keV in $^{18}$F, the BGO segmentation allows to identify and suppress the beam-induced background signals that mimic the sum peak of interest. We demonstrate another new application for such a detector in form of in-situ activation measurements of a reaction with $β^{+}$ unstable product nuclei, e.g., the $^{14}$N($p,γ$)$^{15}$O reaction. |
| title | Advances in Radiative Capture Studies at LUNA with a Segmented BGO Detector |
| topic | Nuclear Experiment Instrumentation and Detectors |
| url | https://arxiv.org/abs/2510.05939 |