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Compton Imaging and Machine-Learning techniques for an enhanced sensitivity in key stellar (n,$\gamma$) measurements
/ Lerendegui-Marco, J (Valencia U., IFIC) ; Babiano-Suárez, V (Valencia U., IFIC) ; Balibrea-Correa, J (Valencia U., IFIC) ; Babiano-Suárez, V (Valencia U., IFIC) ; Caballero, L (Valencia U., IFIC) ; Calvo, D (Valencia U., IFIC) ; Domingo-Pardo, C (Valencia U., IFIC) ; Ladarescu, I (Valencia U., IFIC) ; Real, D (Valencia U., IFIC) ; Calviño, F (Barcelona, Polytechnic U.) et al.
Neutron capture cross-section measurements are fundamental in the study of astrophysical phenomena, such as the slow neutron capture (s-) process of nucleosynthesis operating in red-giant stars. To enhance the sensitivity of such measurements we have developed the i-TED detector. [...]
2022 - 8 p.
- Published in : EPJ Web Conf. 260 (2022) 10002
Fulltext: PDF;
In : 16th International Symposium on Nuclei in the Cosmos, Chengdu, China, 21 - 25 Sep 2021
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2.
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Imaging neutron capture cross sections: i-TED proof-of-concept and future prospects based on Machine-Learning techniques
/ Babiano-Suárez, V. (Valencia U., IFIC) ; Lerendegui-Marcoa, J. (Valencia U., IFIC) ; Balibrea-Correa, J. (Valencia U., IFIC) ; Caballero, L. (Valencia U., IFIC) ; Calvo, D. (Valencia U., IFIC) ; Ladarescu, I. (Valencia U., IFIC) ; Real, D. (Valencia U., IFIC) ; Domingo-Pardo, C. (Valencia U., IFIC) ; Calviño, F. (Barcelona, Polytechnic U.) ; Casanovas, A. (Barcelona, Polytechnic U.) et al.
i-TED is an innovative detection system which exploits Compton imaging techniques to achieve a superior signal-to-background ratio in ($n,\gamma$) cross-section measurements using time-of-flight technique. This work presents the first experimental validation of the i-TED apparatus for high-resolution time-of-flight experiments and demonstrates for the first time the concept proposed for background rejection. [...]
arXiv:2012.10374.-
2021-06-17 - 16 p.
- Published in : Eur. Phys. J. A 57 (2021) 197
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Neutron capture at the s-process branching points $^{171}$Tm and $^{204}$Tl
/ Guerrero, Carlos (Universidad de Sevilla, Spain & CERN, Switzerland) ; Domingo-Pardo, Cesar (IFIC, Instituto de Física Corpuscular, CSIC-University of Valencia, Spain) ; Schumann, Dorotea (PSI, Paul Scherrer Institute, Villigen, Switzerland) ; Heinitz, Stephan (PSI, Paul Scherrer Institute, Villigen, Switzerland) ; Lederer, Claudia (University of Edinburgh, United Kingdom) ; Praena, Javier (Universidad de Sevilla, Spain & CNA, Centro Nacional de Aceleradores, Seville, Spain) ; Sabate, Marta (Universidad de Sevilla, Spain & CERN) ; Quesada, Jose Manuel (Universidad de Sevilla, Spain)
CERN-INTC-2014-003 ; INTC-P-404.
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2014.
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Silicon solid-state detectors for monitoring high-energy accelerator mixed field radiation environments
/ Biłko, Kacper (CERN) ; García Alía, Rubén (CERN) ; Sacristán Barbero, Mario (CERN) ; Prelipcean, Daniel (CERN) ; Cazzaniga, Carlo (CERN) ; Coronetti, Andrea (Jyvaskyla U. ; CERN) ; Martín-Holgado, Pedro (CNA, Seville) ; Morilla García, Yolanda (CNA, Seville) ; Lerner, Giuseppe (CERN) ; Hajdas, Wojciech (PSI, Villigen)
This paper investigates an application of the 1000µm-thick silicon solid-state detector for monitoring of a mixed-field radiation environment, in particular an accelerator environment. The calibrations of the detector against both an alpha source and high-energy protons are presented. [...]
2021 - 5 p.
- Published in : 10.1109/RADECS53308.2021.9954498
In : Conference on Radiation and its Effects on Components and Systems (RADECS 2021), Vienna, Austria, 13 - 17 Sep 2021, pp.1-5
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Preparation and characterization of $^{33}$S samples for $^{33}$S(n,$\alpha$) $^{30}$Si cross-section measurements at the n_TOF facility at CERN
/ Praena, J (Granada U.) ; Ferrer, F J (CNA, Seville) ; Vollenberg, W (CERN) ; Sabaté-Gilarte, M (Seville U. ; CERN) ; Fernández, B (CNA, Seville ; Seville U.) ; García-López, J (CNA, Seville ; Seville U.) ; Porras, I (Granada U.) ; Quesada, J M (Seville U.) ; Altstadt, S (Goethe U., Frankfurt (main)) ; Andrzejewski, J (Lodz U.) et al.
/n_TOF
Thin 33 S samples for the study of the 33 S(n, α ) 30 Si cross-section at the n_TOF facility at CERN were made by thermal evaporation of 33 S powder onto a dedicated substrate made of kapton covered with thin layers of copper, chromium and titanium. This method has provided for the first time bare sulfur samples a few centimeters in diameter. [...]
2018 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 890 (2018) 142-147
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Measurement of the 238U Radiative Capture Cross Section with C6D6 at the CERN n_TOF Facility
/ Mingrone, F (INFN, Bologna ; Bologna U.) ; Massimi, C (INFN, Bologna ; Bologna U.) ; Altstadt, S (Frankfurt U.) ; Andrzejewski, J (U. Lodz (main)) ; Audouin, L ; Barbagallo, M (INFN, Bari) ; Bécares, V (Madrid, CIEMAT) ; Bečvář, F ; Belloni, F (Saclay) ; Berthoumieux, E (Saclay ; CERN) et al.
We present the preliminary results of the U-238(n,gamma) reaction cross section measurement, performed on April 2012 at the CERN n\_TOF facility using C6D6 scintillation detectors over an energy range from thermal to 1 MeV. The goal of this measurement, which is part of a larger proposal, is to reach an uncertainty of 2\% in the cross section. [...]
2014 - 4.
- Published in : Nucl. Data Sheets 119 (2014) 18-21
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