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The Advanced Light Source Upgrade project (ALS-U) is a multi-bend achromat (MBA) upgrade of the Advanced Light Source (ALS), optimized for the production and use of soft and tender x-rays. When completed the upgraded ALS should achieve several orders of magnitude increases in soft and tender x-ray brightness and coherent flux compared with the present-day ALS. The project will also produce experimental capabilities to preserve and take advantage of the large increase in this increase in coherent flux for studying materials and chemical properties. The project is currently in the construction phase. I will discuss the technical design choices made as well as the status of the project.
Bio: David Robin, is an accelerator physicist who has worked at Lawrence Berkeley National Laboratory since receiving his doctorate in Accelerator Physics from the University of California, Los Angeles in 1991. After spending two years working on the design of the PEP-II B-Factory, he joined the ALS accelerator physics staff, leading the ALS Accelerator Physics Group starting in 1999, and then became ALS Deputy for Accelerator Operations and Development in 2005. During his tenure as group leader, he headed a number of ALS accelerator upgrades, including the Superbend upgrade (completed in 2001), the Top-off upgrade (completed in 2009). He was also a member of the brightness upgrade project (completed in 2013) that received the 2015 Secretary of Energy Achievement Award. From 2015 – 2024, he served as the ALS-U Project Director leading the project from its initiation into the construction phase. He is now exploring near and longer-term accelerator upgrades beyond the ALS-U project.