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Description
The feasibility of beam injection process using a pulsed multipole kicker (PMK) magnet as a case study for the storage ring of high brilliance synchrotron radiation source (HBSRS) is investigated. For the HBSRS, the beam emittance of 150 pm rad at the beam energy of 6 GeV is considered assuming 7 bend achromatic (7MBA) type lattice configuration. The PMK magnet provides transparent top up injection, since these magnets have zero magnetic field at their center where the stored beam is passing does not receive perturbation. The injected beam is captured into the storage ring acceptance by a kick of the PMK magnet. For the beam injection studies, a single pulsed sextupole magnet (PSM) as well as non-linear kicker (NLK) magnet scheme is explored. In view of achieving more than 90 % injection efficiency, optimal strength of PSM magnet and acceptable tolerance such as injection angle errors and field strength error are estimated using tracking-based simulation code ELEGANT. The alignment errors of PSM produced unwanted kicks to the stored beam and produces the stored beam oscillation. The alignment tolerance studies for keeping the stored beam oscillation within 10 % of beam size has been studied. In this study, the beam dynamics results of multiparticle tracking simulations in low emittance storage ring are presented.
