Welcome to the SSRL User Research Site

Responsive Design User Portal

SSRL SPEAR shutdown for maintenance/upgrades beginning August 2.

We anticipate that there will continue to be limits on people allowed onsite due to COVID-19. Many user experiments will be continue to be performed by beam line staff through mail-in samples or remote access in coordination with users.  Submit proposals and BTRs by posted deadlines. Contact the User Office if you have questions about how COVID-19 impacts your experiments or to request an extension for impacted proposals.


    Note:  Contact SSRL beamline scientists or floor support staff for other meetings or visits that do not require a user badge, or contact the URA office for assistance.

  • LODGING:  Reserve rooms at the GUEST HOUSE using the SLAC User Reservations Portal to access rooms and rates not accessible to other guests (specify SSRL, proposal number and spokesperson when making reservations through the user reservations portal).

  • FOOD:  Visit the SLACafé Monday–Friday 11:30am–2:30pm. Other FOOD OPTIONS maay include Starbucks and restaurants that deliver to SLAC Main Gate/Guest House.

  • NEWS:  Stay informed by subscribing to SSRL Headline News (send e-mail to with "subscribe ssrl-headlines" in the body).

  • WORK SAFELY:  Be aware and exercise caution when visiting SLAC, particularly during construction. Contact Security if help is needed or to report any problems or suspicious activity: 650-926-2551. For EMERGENCIES, CALL 911 OR 5555.

Planning Ahead Getting Beam Time


SSRL Visitor or Tour Requests - contact SSRL Administration, Building Manager and SLAC Security.



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Society for Science at User Facilities (SSURF)

The Society for Science at User Research Facilities (SSURF) is a non-profit organization working to advance awareness of user facility research. SSURF replaces the National User Facility Organization (NUFO) which represented the interests of scientists who conduct research at national scientific user facilities.

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