Heidelberg 2015 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 10: Precision Tests of the Standard Model 1
HK 10.2: Gruppenbericht
Montag, 23. März 2015, 17:30–18:00, K/HS1
The Ultra-Cold Neutron Laboratory at the FRM II — •Stephan Wlokka1, Andreas Frei1, Peter Fierlinger2, and Stephan Paul2 — 1Forschungs-Neutronenquelle Heinz Maier-Leibnitz (FRM II), Technische Universität München, Lichtenbergstraße 1, D-85748 Garching — 2Physik-Department E18, Technische Universität München, James-Franck-Straße 1, D-85748 Garching
Ultra-cold neutrons (UCN) are neutrons which are totally reflected from a given material surface. Typical energies of UCN are below 300 neV and velocities below 8 m/s. Thus they can be stored in material or magnetic bottles for several hundreds of seconds. As such, UCN are excellent laboratories to study fundamental parameters, e.g. the free neutron lifetime or the electric dipole moment of the neutron.
At the Forschungs-Neutronenquelle Heinz Maier-Leibnitz (FRM II) a new source for UCN is currently being built. This talk will give an overview over the experimental facilities foreseen for this new source, aswell as the current efforts for a complete test setup at the Maier-Leibnitz-Labor (MLL).
The talk will also highlight a current experiment designed to study the irradiation effects on solid Deuterium during the operation of the UCN source.
This work was funded by the DFG Excellenz-Cluster EXC153 ”Origin and Structure of the Universe” and the Maier-Leibnitz-Laboratorium (MLL) of the TU and LMU Munich.