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Motional resonances in a molecular synchrotron

MPS-Authors
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Heiner,  Cynthia E.
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Meijer,  Gerard
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Bethlem,  Hendrick L.
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Citation

Heiner, C. E., Meijer, G., & Bethlem, H. L. (2008). Motional resonances in a molecular synchrotron. Physical Review A, 78(3), 030702-1-032707-4. doi:10.1103/PhysRevA.78.030702.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-FBE7-A
Abstract
A molecular synchrotron offers unique possibilities to study molecular collisions at low energies. For such a study, it is imperative that the velocity of the stored molecules can be tuned over a wide range. Bunching elements, used to provide the necessary longitudinal focusing forces in a synchrotron, introduce instabilities for certain velocities of the stored molecules. Here we present an experimental study of these motional resonances and show how they can be avoided. A packet of ND3 molecules is stably confined in the synchrotron as its injection velocity is continuously scanned from 60 m/s Ekin=3.0 cm−1 to 87.5 m/s Ekin=6.4 cm−1 .