Speaker
Description
In December 2025 SLS 2.0 enters a ~5-month shutdown period. The most prominent modification concerns 2 out of 4 normal conducting central 2 T superbends which will be replaced by superconducting counterparts with higher peak field of up to 5 T in arc 1 and 2. This replacement necessitates the exchange of the adjacent permanent combined function magnets (triplet) and the vacuum system of both out of 12 arcs. In addition, several new insertion devices (2-3) will be installed. It is also foreseen to insert the prototype of an ultra-fast kicker which will allow in its final version for the implementation of alternative injection schemes. The startup is planned for the beginning of May 2026 with a very short recommissioning time of only 5 weeks. Although the ring already showed excellent performance, the important subsystems and applications are in place it is apparent that the modifications are challenging. In addition, the vacuum conditions must improve quickly to be able to operate at the nominal beam current of 400 mA at an acceptable lifetime of ~10h after the recommissioning period.
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