Upcoming user beam schedules as of 6/8/2026
- 2026-2 Cycle (July–December): No beam in the second half of 2026. The ALS will shut down in early July through the end of the calendar year for the replacement of the switch station through which all power for the ALS accelerator comes.
- 2027-1 Cycle (January–June): Several months of beam, anticipated to begin in January. Accumulator ring commissioning will require a month-long period in the spring without user operations. Following this, continued accumulator commissioning will require approximately six weeks of reduced user operations. During that time, the ALS will be shut down for approximately four days per week. The detailed cycle schedule will be announced in fall 2026.
- 2027-2 Cycle (July–December): At least three months of beam, depending on final dark time start date. We will not have an extended shutdown in summer 2027. Detailed schedule anticipated in spring 2027.
- Dark time: Dark time is planned to start no earlier than October 2027 and will last approximately 22 months.
For inquires please contact BCSBbeamtime@lbl.gov
Citing Us
The Berkeley Center for Structural Biology is supported by the Howard Hughes Medical Institute, Participating Research Team members, and the National Institutes of Health, National Institute of General Medical Sciences, ALS-ENABLE grant P30 GM124169. The Advanced Light Source is a Department of Energy Office of Science User Facility under Contract No. DE-AC02-05CH11231. The Eiger detector on beamline 2.0.1 was funded under NIH grant 1S10OD032212. The Pilatus detector on beamline 5.0.1 was funded under NIH grant S10OD026941.