Advanced Photon Source

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The U.S. Department of Energy Office of Science’s Advanced Photon Source (APS) at Argonne National Laboratory give users access to a powerful, versatile, invisible light that is ideal for studying the arrangements of molecules and atoms, probing the interfaces where materials meet, determining the interdependent form and function of biological proteins, and watching chemical processes that happen on the nanoscale. This remarkable scientific tool helps researchers illuminate answers to the challenges of our world, from developing new forms of energy to sustaining our nation’s technological and economic competitiveness to pushing back against the ravages of disease.
Thousands of researchers representing universities, industries, and research labs from all 50 of the United States, the District of Columbia, Puerto Rico, and foreign countries are drawn to the APS. They depend on the APS as a vital resource in their pursuit of knowledge.

Latest News From Advanced Photon Source


USA, Argonne (Illinois)
Energy: 7 GeV
Current: 100 mA
Operational Beamlines: 68
Call for proposals
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