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HK: Fachverband Physik der Hadronen und Kerne

HK 3: Fundamentale Wechselwirkungen

HK 3.3: Talk

Monday, March 10, 2008, 14:45–15:00, 2B

Production and extraction of ultra-cold neutrons from a superfluid helium converter — Philipp Schmidt-Wellenburg^1,2, Martin Assmann², Kristian Baumann², Martin Fertl², Beatrice Franke², Jens Klenke⁵, Sergei Mironov^1,2,3, Christian Plonka¹, •Dennis Rich⁵, Ben van den Brandt⁴, Hans-Friedrich Wirth², and Oliver Zimmer^1,2 — ¹Institut Laue Langevin, BP 156, 38042 Grenoble, France — ²Physik Department E18, Technische Universität München, 85748 Garching, Germany — ³Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region 141980, Russia — ⁴Paul Scherrer Insitut, CH-5232 Villingen PSI, Switzerland — ⁵Forschungsreaktor München FRM II, Lichtenbergstrasse 1, 85747 Garching, Germany

We have successfully extracted ultra-cold neutrons (UCN) from a converter volume filled with superfluid helium. This window free extraction permits high precision experiments with UCN at room temperature and in vacuum. This talk will present recent results obtained at the Munich research reactor and give an overview of the source development project at the Institut Laue Langevin.