München 2019 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 11: Synchrotron Radiation

AKBP 11.4: Vortrag

Mittwoch, 20. März 2019, 11:45–12:00, HS 7

Alternative methods for Landau damping of transverse instabilities in synchrotrons. — •Vadim Gubaidulin1, Oliver Boine-Frankenheim1,2, and Vladimir Kornilov21TEMF, TU Darmstadt, Darmstadt, Germany — 2GSI, Darmstadt, Germany

Octupoles are now the standard method of providing incoherent tune spread for Landau damping. This method scales poorly for higher intensity beams and coherent beam instabilities become harder to damp, requiring more and more octupole magnets. Alternative methods (such as electron lens or radio frequency quadrupole) can, in theory, be more effective for damping and less destructive for single particle stability. Beam stability in space charge dominated beams must account for effects of space charge induced tune spread and tune shift on Landau damping. We shall compare how alternative Landau damping methods compete with conventional Landau octupoles for different applications.

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