Title :
Low emittance lattices for the Duke FEL Storage Ring
Author :
Mikhailov, S.F. ; Litvinenko, V.N. ; Wu, Y.
Author_Institution :
Duke Univ., Durham, NC, USA
Abstract :
In this paper we present two options for a new lattice of the 1 GeV Duke FEL Storage Ring reducing horizontal beam emittance from existing 18 nm*rad to 1.4 nm*rad and 0.9 nm*rad respectively. One of proposed lattices reuses existing magnetic elements, another is based on completely new design. The use of combined function magnets with dipole, quadrupole and sextupole components allows us to keep the ring compact and fit it into existing footprint. 2D and 3D field simulations for such a magnet showed good quality of magnetic field. Preliminary results for dynamic aperture simulations are also presented. We also discuss the choice of lattice cell and tune advances and the concept of local compensation of nonlinear aberrations
Keywords :
accelerator magnets; electromagnets; electron accelerators; free electron lasers; high energy physics instrumentation computing; particle beam dynamics; particle beam extraction; storage rings; 1 GeV; DUKE FEL storage ring; combined function magnets; dipole components; dynamic aperture simulations; field simulations; horizontal beam emittance; low emittance lattices; magnetic elements; magnetic field; nonlinear aberrations; quadrupole components; sextupole components; tune advances; Apertures; Hardware; Impedance; Laboratories; Lattices; Magnetic fields; Magnets; Storage rings; Testing; Undulators;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988167
