First Measurement of 72Ge(n gamma) at n-TOF
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The slow neutron capture process (s-process) is responsible for producing about half of the elemental abundances heavier than iron in the universe. Neutron capture cross sections on stable isotopes are a key nuclear physics input for s-process studies. The 72Ge(n,gamma) cross section has an important influence on production of isotopes between Ge and Zr during s-process in massive stars and therefore experimental data are urgently required. 72Ge(n,gamma) was measured at the neutron time-of-flight facility n_TOF (CERN) for the first time at stellar energies. The measurement was performed using an enriched 72GeO2 sample at a flight path of 185 m with a set of liquid scintillation detectors (C6D6). The motivation, experiment and current status of the data analysis are reported.
CitacióCalviño, F.; Cortes, G.; Tarifeño, A. First Measurement of 72Ge(n gamma) at n-TOF. A: European Summer School on Experimental Nuclear Astrophysics. "9th European Summer School on Experimental Nuclear Astrophysics: Catania, Italy: September, 17-24, 2017 in: EPJ web of conferences ; volume 184 (2018)". EDP Sciences, 2018, p. 1-5.