After another busy shutdown, the ALS is in the process of returning to user operation later this week. The ALS-U accomplishments of the Winter 2025 shutdown include the accumulator ring installation sectors 1-11, seismic upgrades, ALS-U cable routing and electrical installation, RF infrastructure installation, and the booster bend power supply commissioning. In addition, the teams were able to complete several projects for the current ALS. Read more »
Summer 2024 Shutdown Recap
The ALS is back in user operation after more than two months of shutdown. By now, more than 80% of the Accumulator Ring (AR) has been installed, as well as both of its radio frequency (RF) cavities. A number of other tasks were also completed. Read more »
Winter 2024 Shutdown Recap
The ALS is back in user operation after more than two months of shutdown. Major achievements include the mechanical installation for the new booster bend power supplies and the two power supplies for the accumulator ring radio frequency system. Read more »
2023 Summer Shutdown Recap
The ALS is back in user operations after a 12-week summer shutdown. Most of the shutdown work centered around ALS-U tasks, including installing a full arc sector of the accumulator ring. Read more »
Winter 2023 Shutdown
The winter 2023 shutdown was relatively short. It started just after the holiday shutdown, and user operations resumed on February 16, delivering on the ALS commitment to minimize shutdown length as much as possible. Read more »
Summer 2022 Shutdown Recap
The ALS returned to user operations on August 23 after its summer shutdown. The work included larger projects, such as installation of magnet stands for the ALS-U accumulator ring and the replacement of the liquid nitrogen tank, as well as several other facility improvements. Read more »
Winter 2022 Shutdown Recap
The main driver for the recent shutdown (January to early March) was preparing the storage ring wall for the installation of the ALS-U accumulator ring. Check out the video of all the projects that took place during this shutdown. Read more »
Summer 2021 Shutdown
Last week the ALS returned to user operations after its summer shutdown. A lot of work was accomplished, including several large projects in the storage ring and maintenance and updates for the accelerator and beamlines. Read more »
Winter 2021 Shutdown Recap
During the Winter 2021 shutdown, the ALS was a hive of activity, though social distancing requirements during the pandemic meant that the activity looked a bit different from years past. We began commissioning on March 26 and plan to return to user operations after commissioning concludes. Read more »
Materials from Town Hall on Shutdown Schedules Now Available
On January 26, the ALS held a town hall on the schedule for upcoming long shutdowns. The event provided up-to-date information on the schedule, explained the motivations behind decisions, and discussed principles and strategies for future decision-making. Slides and a recording from the event, as well as an FAQs document, are posted to the ALS website. Read more »