Speaker
Description
The Advanced Light Source Upgrade (ALS-U) at Lawrence Berkeley National Lab (LBNL) will replace the existing storage ring (SR) while leveraging much of the current ALS infrastructure and experimental systems. The new SR will use powerful, compact magnets arranged in a dense, circular array called a multi‑bend achromat lattice. The SR removal and installation (R&I) work will occur during an approximately 21- to 22-month-long shutdown period known as Dark Time (DT), currently scheduled to start near the end of 2027. A multitude of other projects will also occur during this same time period, all of which are necessary in order to commission the new accelerator. These projects include the seismic retrofit of the facility, upgrades to lead and concrete shielding, relocation and reconfiguration of many front ends, and upgrades to the SR AC power distribution. The LBNL R&I team acts as the general contractor and manages space utilization, logistics, and schedule time frames across all of these projects.
A key component of DT planning is LBNL's integrated supplemental DT schedule. This technically-driven schedule captures critical dependencies across all work performed in DT in order to define the time frames and boundary conditions for each subcontractor. In my presentation I will discuss R&I’s overall plan for Dark Time, including how all of the projects interface with one another, as well as key challenges and the mitigation strategies developed to address them.