FRAM1HA03
MPI-K, Heidelberg, Germany
ISP, Novosibirsk, Russia
Columbia University, New York, USA
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FRAM1HA03 |
Heavy Molecular Ion Beams in Electron Cooler Storage Rings | |
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| Since 2006, the experimental electron cooler of the Heidelberg TSR heavy-ion storage ring operated using a cryogenic photo cathode source, delivering dc electron beams of ~1 meV/k transverse temperature. This setup has paved the way to efficient electron cooling of slow molecular ions using velocity-matched electron beams of only a few tens of eV of kinetic energy. Low electron temperature is a strict requirement in this kind of application as, at increasing mass-to-charge ratio of the ions, the electron density - and hence the available cooling force - becomes limited by the maximum storage velocity. The electron cooler of the Cryogenic Storage Ring CSR, presently in construction in Heidelberg, will be based on the same emitter cathode and will reduce the low-energy limit of the electron cooling technique even further, operating at electron beam energies down to 1 eV. | ||
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Slides FRAM1HA03 [9.915 MB] | |