The User Office is accepting new General User Proposals (GUPs) and beamtime requests (BTRs) on existing GUPs. The deadline for submissions is September 2, 2026. Please read the upcoming schedule information closely and contact alsproposals.lbl.gov with any questions.
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Updates & Announcements
In Memoriam: Jim Underwood, Retired Berkeley Lab Physicist
We are saddened to report the passing of Jim Underwood, who made many significant contributions to the early days of the Advanced Light Source and the Center for X-ray Optics. Read more »
ALS Fellowship Application Window Opens in September
Applications for fellowships to start in winter or spring 2027 will be accepted from September 8–October 2. Fellows will spend up to a year in residence at the ALS pursuing research projects in teams that include staff and the user community, and will be exposed to current scientific challenges that advanced synchrotron radiation tools can tackle. Read more »
The ALS-U Project Progresses with New Director
The Advanced Light Source Upgrade (ALS-U) project has received approval for a revised cost and schedule, targeting completion by late 2029. Greg Hays joins the team to steer the historic modernization project, which will increase soft X-ray brightness a hundredfold and enable AI-driven research in materials science, quantum computing, biology, and more. Read more »
In Memoriam: David Richardson, Retired ALS Accelerator Operator
The ALS community pays tribute to our colleague, David Richardson, who passed away in April 2026. David retired in 2021 after a 22-year tenure at Berkeley Lab, and here we share fond memories from the many people whose lives he touched. Read more »
14th International Workshop on Photoionization and Resonant Inelastic X-ray Scattering (IWP/RIXS) Conference
Don’t miss your chance to join Photoionization and Resonant Inelastic X-ray Scattering experts in Berkeley this July! We welcome researchers, scientists, and students from around the world to join us for five days of scientific exchange and collaboration—register today! Read more »
Director’s Message on Beamtime in 2027
The ALS-U project plan has now been updated, and we have revised our proposal calls leading up to the dark time. Dark time remains on track to start no earlier than October 2027 (~22 months). With substantial user beamtime anticipated in 2027, we’ve added a new proposal call due September 2, 2026. Learn more about the details and contact alsproposals@lbl.gov with questions. Read more »
Congratulations to Our 2026 Retirees
Thank you to Valeriy Yashchuk, Haris Mahic, Bill Holmquist, Gordon Lyall, Phil Yuzon, and William Fung for your contributions to the ALS. Congratulations on your retirement! Read more »
Bowen Zheng and Mary Lopez Honored for Volunteering
On April 23rd, the Community Relations and the A-LIFT teams at Berkeley Lab held a volunteer appreciation event to honor outstanding volunteers. Bowen Zheng was honored for volunteering at with other Lab volunteers the Food Bank of Contra Costa and Solano, at the Solano Stroll, and on his own with Meals on Wheels. Mary Lopez was honored for volunteering with the Lab at several events, including the Cinco de Mayo Festival, Berkeley Juneteenth Festival, and SF Pride Parade. Read more »
Poster Session for Spring 2025 Cohort of ALS Fellows
On the sunny afternoon of April 23, the ALS community gathered to celebrate a year of excellent science from the ALS fellows. The Spring 2025 Cohort presented their posters, and everyone enjoyed cake on the patio. Read more »
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