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Münster 2017 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 25: Instrumentation VI

HK 25.6: Talk

Tuesday, March 28, 2017, 15:30–15:45, F 072

NeuLAND Demonstrator at SAMURAI and first Experiments — •Julian Kahlbow for the NeuLAND-SAMURAI collaboration — Institut für Kernphysik, TU Darmstadt, Germany — GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany

The high-resolution neutron time-of-flight spectrometer with large acceptance NeuLAND is the new neutron detector being developed for the R3B setup (Reactions with Relativistic Radioactive Beams) at FAIR. NeuLAND is dedicated to the detection of high-energy neutrons up to 1GeV. The NeuLAND Demonstrator (400 out of finally 3000 scintillator bars) is currently part of the SAMURAI setup (Superconducting Analyzer for Multi-particle from Radio Isotope Beams) at the RI Beam Factory in Japan.

The machine study experiment of the NeuLAND Demonstrator will be discussed in detail. In this experiment, quasi-monoenergetic neutrons were applied in order to determine the specific one-neutron detection efficiency of the detector at two different energies, in particular 110 MeV and 250 MeV. The NeuLAND Demonstrator together with NEBULA (Neutron-detection system for Breakup of Unstable-Nuclei with Large Acceptance) leads to a large multi-neutron detection efficiency at the SAMURAI experimental setup. An illustrative example applying the invariant-mass spectroscopy to neutron-unbound states of fluorine isotopes will be introduced.

This work is supported by the BMBF project 05P15RDFN1 and the GSI-TU Darmstadt cooperation agreement.

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