München 2019 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 45: Instrumentation X and Applications
HK 45.1: Gruppenbericht
Mittwoch, 20. März 2019, 16:30–17:00, HS 12
Multi-neutron detection with NeuLAND — •J. Mayer and A. Zilges for the R3B- and the NeuLAND-SAMURAI collaboration — Institute for Nuclear Physics, University of Cologne
The high-resolution, large-acceptance time-of-flight spectrometer NeuLAND is the new neutron detector for the R3B setup (Reactions with Relativistic Radioactive Beams) at FAIR. NeuLAND is dedicated to the detection of high-energy neutrons up to 1 GeV.
In this talk, we will give an overview on construction, experiments, and software: NeuLAND consists of plastic scintillator bars (5 cm x 5 cm x 250 cm) which are arranged to so-called double planes. An experimental campaign with four double planes was performed at the SAMURAI setup at RIKEN, Japan, from 2015 to 2017 [1]. We verified simulations of the detector with this experimental data and studied the detector response for the upcoming experiments in FAIR Phase 0. To extract the multiplicity and the interaction points of primary neutrons, analysis software was prepared. Here we present different event reconstruction algorithms and their performance for simultaneous detection of up to five neutrons.
Supported by the BMBF (05P15RDFN1, 05P19PKFNA, 05P15RFFN1), the DFG (SFB 1245), and the GSI-TU Darmstadt cooperation agreement.
[1] J. Kahlbow et al., GSI-FAIR Scientific Report 2017 (RESEARCH-NUSTAR-KR-3)