TRANSPORT OF NON-SYMMETRIC ION BEAMS IN ROTATING ION-OPTICAL SYSTEMS
Transport of ion beams in rotating ion-optical systems is discussed in the paper.
Special attention is paid to the transport of beams with different emittances in
the horizontal and vertical plane (non-symmetric beams). Summary of theoretical
matrix analysis of the problem is presented. Different matching methods are
reviewed and compared. A novel solution that has recently been granted a US-Patent
is presented. An example is given for transport of ion-therapy
beams through an isocentric rotating gantry. Theoretical considerations and results
are, however, valid for other types of rotating systems, as well.
Keywords: beam-transport, emittance, gantry, ion optics, ion therapy