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Description
SOLEIL II is a synchrotron light source aiming to deliver extremely high-brightness beams in the soft-tender X-ray range [1]. The storage ring will operate with an electron beam emittance below 100 pm·rad. To ensure efficient injection into the storage ring, the emittance of the electron beam extracted from the booster must be in the few-nm·rad range (5.2 nm·rad compared to 140 nm·rad for the present booster). To achieve these beam parameters, the booster injection energy is increased from 110 MeV to 150 MeV, and a new booster with a modified 16BA lattice has been designed [2,3].
We show that the booster design has now converged towards its final configuration: the main dipoles of the 14BA arcs and 2BA matching sections are defined, the booster circumference is fixed, and the beam dynamics along the energy ramp has been studied including both systematic and random multipolar components.
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