Berlin 2014 – wissenschaftliches Programm
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K: Fachverband Kurzzeitphysik
K 4: Laser-Materie-Wechselwirkung und Laseranwendungen I
K 4.4: Vortrag
Dienstag, 18. März 2014, 12:00–12:15, SPA SR203
Laser-induced thermal neutron production at high repetition rates using novel cluster/gas targets — •Friederike Schlüter1, Thomas Brückel4, Markus Büscher1, Mirela Cerchez5, Laura Di Lucchio3, Ilhan Engin2, Paul Gibbon3, Patrick Greven2, Silke Grieser6, Astrid Holler2, Alfons Khoukaz6, Esperanza Köhler6, Ulrich Rücker4, Julian Sohn6, Toma Toncian5, and Oswald Willi5 — 1Peter Grünberg Institut (PGI), FZ Jülich — 2Institut für Kernphysik (IKP), FZ Jülich — 3Jülich Supercomputing Centre (JCHP), FZ Jülich — 4Jülich Centre for Neutron Science (JCNS), FZ Jülich — 5Institut für Laser-Plasma Physik (ILPP), Heinrich-Heine Universität Düsseldorf — 6Institut für Kernphysik, Westfälische Wilhelms-Universität Münster
The physics of laser driven particle sources has undergone great developments in recent years. With increasing laser powers it is nowadays possible to accelerate particles to multi-MeV kinetic energies. Such proton and deuteron beams can be used to generate short MeV neutron pulses in a secondary converter made, e.g., from Be [Roth]. Using a novel target concept, we want to realize a high repetition rate thermal neutron source at the 300 TW 10 Hz Düsseldorf ARCturus laser facility. For that purpose a source for frozen H2 or D2 clusters - each with up to 106 molecules - has been prepared at Münster University which will be combined with a conventional gas jet. In a first measurement in 2014 we will optimize the p and d fluxes from the cluster/gas target, and then build tailored (i.e. compact) neutron converter targets and moderators to deliver intense neutron pulses at meV energies.