Super-FRS Lattice with Cos  multipoles M. Yavor RAS, St. Petersburg H. Geissel, H. Weick, M. Winkler, J.S. Winfield GSI, Darmstadt Super-FRS Multipole Design Meeting, GSI, 22 January 2009

Super-FRS Multipole Design Meeting, GSI, 22 January 2009 Procedure adopted Transmission optimized for +-8 mm height at target (y-direction) For fission fragments 134Sn transmission is estimated by Mocadi simulation as being between 35 and 38 % for all branches To improve the aberration correction, included additional 3rd-order correction at the ends of Pre- and Main-separators (correction of (x,ayy)). To improve the separation quality, in Pre-separator used 6-hexapole correction scheme instead of the 5-hexapole one adopted before. In case of small initial beam height this correction can be skipped. All additional corrections are performed by coils located inside existing quadrupoles. Super-FRS Multipole Design Meeting, GSI, 22 January 2009

Superferric lattice (one section) Super-FRS Multipole Design Meeting, GSI, 22 January 2009

Cos- lattice (one section) Super-FRS Multipole Design Meeting, GSI, 22 January 2009

Cos- magnets used in lattice 1.0-m effective length 0.19-m useable aperture (circular) Quadrupole, sextupole and octupole components possible Pure quadrupole and pure sextupole included Spacing between multipoles: 0.4 m Spacing multipole – dipole: 0.9 m Super-FRS Multipole Design Meeting, GSI, 22 January 2009