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Hannover 2003 – wissenschaftliches Programm

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MO: Molekülphysik

MO 12: Poster II

MO 12.18: Poster

Donnerstag, 27. März 2003, 16:00–18:30, Lichthof

A rotating source for (ultra-)cold molecular beams — •Maarten DeKieviet1, Frank Lang1, and Karl Zrost21Physikalisches Institut, Universität Heidelberg, Philosophenweg 12, 69120 Heidelberg — 2Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg

The optical methods used for cooling atoms cannot be adapted for applications with molecules straightforwardly. In this contribution, we present a source for molecular beams based on a rotating nozzle which is capable of producing (ultra-)cold molecules. The concept is explained and measurements with various rare gases (Ar, Kr, Xe) are shown. A supersonic Xenon beam with a mean velocity of 55 m/s at 15.5 K beam temperature is produced. Further reduction of the beam speed can be obtained, but is currently limited by the pumping capacity of the apparatus.

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