Design study of multi-bend achromats in 3 GeV storage ring
by
216-1호
제1과학관
The Multi-Bend Achromat (MBA) lattice is one of promoting the future facility of the storage ring based light source, which can provide the small horizontal emit- tance in the sub-nanometer range. We present the linear and non-linear properties of the designed optics and the result of the optimization. In the magnet structure design of synchronous radiation light source storage ring, making the beam emittance as small as possible, the other is to ensure that it is dynamic aperture is large enough. Therefore, in the storage ring design requires reasonable arrangements to sextupole magnets, and strives for sextupole strength as small as possible, in order to expand the dynamic aperture. The designed MBA lattice is designed as 5-bend achromat and emittance of 0.270 nm-rad is achieved. The energy and circumference of the designed optics are 3 GeV and 499.3 m. Respectively, Injection system is one of the most important systems for the storage ring. Pulsed multipole magnet injection scheme is a novel injection method, this type of injection does not require an injec- tion bump and has the potential to make top-up injection fully transparent to users, We investigated an injection system with a single pulsed sextupole magnet (PSM) in the storage ring. We present the space allocation in the injection sections and the particle dynamics of injected beam is also presented. As a result, our design shows the result of very low emittance, enough dynamic aperture and injection scheme for the light source of 3 GeV.
Thesis Advisor: Prof. Guinyun Kim