SLAC from the Sky

Take a tour of SLAC

We invite you to launch our interactive, self-paced tour or register for an on-site tour of SLAC. The tour destinations are designed to give you the most exciting and informative views of the lab. We are continuously adding on new stops and information about our sciences.

 

Visitor on a public tour of SLAC lab

 

 
Tour types

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satellite view of SLAC lab
Map data ©2019 Google
Our facilities

Tour stops

Tour stops, both virtual and in-person, have been selected for viewing and practical considerations, as some areas of our lab are restricted to the public. We are continuously adding on new stops and information about our sciences.

SLAC Linac Coherent Light Source (LCLS) accelerator tunnel.

Linear accelerator

The linear accelerator (linac) is the longest modern building on Earth. The building above ground, nearly 2 miles long, houses klystrons that generate powerful microwaves. Below ground, these waves accelerate electrons to nearly the speed of light. Today the accelerator is divided into three sections that generate high-energy electrons for three facilities: the Linac Coherent Light Source (LCLS); LCLS-II, an upgrade to LCLS now under construction; and the Facility for Advanced Accelerator Experimental Tests (FACET-II).

Preparations of instruments for beam and experiments at LCLS

Linac Coherent Light Source (LCLS)

The Linac Coherent Light Source (LCLS) is where the electron beam generates some of the world’s brightest X-ray laser pulses.

LCLS-II crew members work to carefully unload a cryomodule delivery from Jefferson Lab.

LCLS-II

The LCLS-II, an upgrade to LCLS, is now under construction. In this section, the original copper accelerator is being replaced by a new superconducting, niobium-based particle accelerator that will be cooled to almost absolute zero using liquid helium.

A look inside SLAC’s FACET-II test facility.

Facility for Advanced Accelerator Experimental Test (FACET-II)

The Facility for Advanced Accelerator Experimental Test (FACET-II) is where scientists test advanced acceleration technologies that could dramatically shrink particle accelerators. 

LSSTCam

Legacy Survey of Space and Time (LSST) Camera

The Legacy Survey of Space and Time (LSST) Camera is a large camera for the next major galaxy survey. Scientists use the LSST Camera to study dark energy by looking at how the distribution of galaxies changes as we look farther out into the universe.

Staff scientist Jeney Wierman seen working at SSRL during the covid lockdown.

Stanford Synchrotron Radiation Lightsource (SSRL)

The Stanford Synchrotron Radiation Lightsource (SSRL) is an extremely bright X-ray light for probing our world at the atomic and molecular levels.

Formation of dark matter structures.

Kavli Institute for Particle Astrophysics and Cosmology (KIPAC)

The Kavli Institute for Particle Astrophysics and Cosmology (KIPAC), explores new fronts and challenges in astrophysics and cosmology.

Cornelius Gati working on a Tuberculosis samples at the Cryo-EM facility

Cryogenic electron microscopy (Cryo-EM)

Cryogenic electron microscopy (cryo-EM) provides revolutionary tools to give scientists unprecedented views of the inner workings of the cell.

 
Tour participants visit an accelerator control room on community day

 

What to expect

Visitor information

Virtual tour FAQs

In-person tour FAQs

 

 

 

Tour stop at LCLS's XCS Hutch in the Far Experimental Hall

In-person tour guidelines

Public tour guidelines

  • SLAC National Accelerator Laboratory offers free public tours. 
  • Tours last approximately 90 minutes and usually include a visit to the lab’s 2-mile-long linear accelerator, now driving the world’s brightest X-ray source.
  • Tours are offered twice a month, by registration only.
  • All public tours meet in the SLAC Orientation Theater (Room 1010), Building 53, 15 minutes prior to tour time. Closed-toed shoes are required.
  • Tours are open to all visitors 12 years of age and above. Children 12-17 years of age must be accompanied by an adult; tickets are required for both the minor and the escorting adult.
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