Editing Advanced Photon Source (section)

{{Infobox particle accelerator
| name           = Advanced Photon Source (APS)
| image          = U.S. Department of Energy - Science - 362 027 001 (10193127443).jpg
| caption        = External view of the APS
| type           = [[Storage ring]]
| beam           = [[Electron]]
| target         = [[Synchrotron light source|Light source]]
| energy         = 7 GeV
| current        = 100 mA
| brightness     = {{val|6e19|u=ph./s/0.1%/mm<sup>2</sup>/mrad<sup>2</sup>}}
| luminosity     =
| length         =
| radius         =
| circumference  = {{convert|1100|m|ft}}
| location       = [[Lemont, Illinois]]
| coordinates    = <!-- {{coord|LAT|LON|type:landmark|display=inline,title}} -->
| institution    = [[United States Department of Energy|US-DoE]]
| dates          = 1995 – present
| preceded       =
| succeeded      = 
}}

The '''Advanced Photon Source''' ('''APS''') at [[Argonne National Laboratory]] (in Lemont, Illinois) is a storage-ring-based high-energy X-ray light source facility. It is one of five X-ray light sources owned and funded by the [[United States Department of Energy|U.S. Department of Energy]] [[Office of Science]]. The APS began operation on March 26, 1995. It is operated as a user facility, meaning that it is open to the world’s scientific community, and more than 5,500 researchers make use of its resources each year.