Review and new concepts for neutron-capture measurements of astrophysical interest
Metadatos
Afficher la notice complèteAuteur
Domingo Pardo, C.; Ogállar Ruiz, Francisco; Porras Sánchez, José Ignacio; Praena Rodríguez, Antonio Javier; Torres Sánchez, PabloEditorial
IOP PUBLISHING LTD
Date
2020Referencia bibliográfica
C. Domingo-Pardo et al 2020 J. Phys.: Conf. Ser. 1668 012013 [DOI: 10.1088/1742-6596/1668/1/012013]
Patrocinador
European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (ERC Consolidator Grant project HYMNS) 681740; Instituto de Salud Carlos III Spanish Government FPA2014-52823-C2-1-P FPA2017-83946-C2-1-P; Consejo Superior de Investigaciones Cientificas (CSIC) PIE-201750I26; Program Severo Ochoa SEV-2014-0398Résumé
The idea of slow-neutron capture nucleosynthesis formulated in 1957
triggered a tremendous experimental effort in different laboratories worldwide to
measure the relevant nuclear physics input quantities, namely (n, γ) cross sections over the stellar temperature range (from few eV up to several hundred keV) for most
of the isotopes involved from Fe up to Bi. A brief historical review focused on total
energy detectors will be presented to illustrate how advances in instrumentation have
led to the assessment of new aspects of s-process nucleosynthesis and to the progressive
refinement of stellar models. A summary will be presented on current efforts to
develop new detection concepts, such as the Total-Energy Detector with γ-ray imaging
capability (i-TED). The latter is based on the simultaneous combination of Compton
imaging with neutron time-of-flight (TOF) techniques, in order to achieve a superior
level of sensitivity and selectivity in the measurement of stellar neutron capture rates.