Control of Btatron Oscillations in a Cyclotron by Use of an On-Line Computer

Abstract
A system is described which is used to control radial betatron oscillations in the Karlsruhe AVF Cyclotron. The output of a radial current density target is digitized and fed into the memory of a CDC 3100 on-line computer. As different orbits are separated up to extraction radius in the Karlsruhe cyclotron they can be indentified by a computer program. Their radii can either be displayed on an oscilloscope screen or used for further calculations in order to obtain information on necessary corrections of the magnetic field.

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