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München 2019 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 60: Nuclear Astrophysics V

HK 60.2: Talk

Friday, March 22, 2019, 14:30–14:45, HS 16

NICE -Neutron Induced Charged particle Emission — •Kafa Khasawneh1, Benjamin Bruckner1, Philipp Erbacher1, Stefan Fiebiger1, Roman Gernhäuser2, Kathrin Göbel1, Deniz Kurtulgil1, Christoph Langer1, René Reifarth1, Benedikt Thomas1, Meiko Volknandt1, and Mario Weigand11Goethe University Frankfurt — 2Technical University Munich

Neutron-induced nuclear reactions with the charged particle in the exit channel play an essential role in the s-process nucleosynthesis, but are also important for medical and nuclear reactor technologies. Despite this importance, cross-section data for such reactions are still scarce because of the short range of charged particles (µ m), which hampers their detection. Only very thin samples in the range of micrometers can therefore be used. New approaches are required in particular for the time-of-flight technique to overcome the low reaction rates.

A new detector setup (NICE-detector) based on an organic plastic scintillator was proposed and tested at the Goethe University Frankfurt. One of the test cases was the capture cross-section of 209Bi at different astrophysically important energies. In this talk, the performance of the adapted detector setup as well as the results of calculated cross-section values will be presented. This project is supported by the DFG project NICE (RE 3461/3-1).

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