München 2019 – wissenschaftliches Programm
HK 54.58: Poster
Donnerstag, 21. März 2019, 16:30–19:00, Foyer Theresanium
The new Neutron Depth Profiling Instrument N4DP at the MLZ — •Lukas Werner1, Markus Trunk1, Roman Gernhäuser1, Ralph Gilles2, Bastian Märkisch1, and Zsolt Revay2 — 1Technische Universität München, Physikdepartment — 2Technische Universität München, Heinz-Maier-Leibnitz Zentrum
In neutron depth profiling (NDP), an applied nuclear physics technique, neutrons are captured by nuclei such as 6Li or 10B. The resulting compound nucleus then decays into two charged particles (an alpha and triton particle in the case of Lithium). Due to conservation of four-momentum, these particles are emitted back to back, at fixed energies. If the two charged particles are produced within a sample they will lose energy while propagating out of it. In NDP, this energy loss is correlated to the depth where this reaction takes place. At the Heinz-Maier-Leibnitz Zentrum in Garching a new instrument with a high neutron flux of up to 510 n/sec cm2 and a depth resolution down to 5 nm is currently being set up for a long series of measurements in very different fields of physics.