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Operating Schedule

Beamline Schedules

Schedules for individual beamlines are posted in the ALS Scheduler.

Upcoming Long Shutdowns

Over the next two years, shutdowns will be longer than in recent years to allow the installation of the new accumulator ring, which is required to inject beam into the storage ring of the upgraded ALS, and the replacement of aging infrastructure in our 30-year-old facility in preparation for the new storage ring’s installation. In general, long shutdowns are expected to begin at the start of January and July and last ~13 weeks.

“SoftStart” indicates either a buffer period for contingencies arising after long shutdowns or periods when limited beamtime may be offered on a case-by-case basis. Any user beamtime scheduled for the SoftStart period should have the flexibility to be rescheduled for a later time.

In June 2026, the facility will go dark for one year for installation of the new ALS-U storage ring. More information on the project timeline can be found here.

The upcoming operating schedule is now available here: 2025-1 Jan–Jul schedule.

Current Operating Schedule

Google Calendar: Click the following link to add the ALS operating schedule to your Google Calendar (with option to toggle display on/off).

Past Operating Schedules