Optics optimization and commissioning simulations for Elettra 2.0

Optimization of dynamic aperture is a challenging aspect of low emittance storage ring lattice design. A large dynamic aperture is favourable for efficient injection and long beam lifetime. Several methods like simple scanning of sextupoles and octupoles strength and genetic optimization with different configurations have been successfully combined to enlarge the dynamic aperture of Elettra 2.0 and ensure high efficiency injection. Using the optimized machine we then study its commissioning via simulations including and discussing the various stages from injection to the first turn, to accumulation.