The Advanced Photon Source
a U.S. Department of Energy Office of Science User Facility


In May 2002, The Advanced Photon Source was reorganized into three divisions: the Accelerator Systems Division (ASD), the APS Engineering Support Division (AES), and the X-Ray Science Division (XSD). Parts of the former User Program Division (UPD) were incorporated into XSD, while other parts were incorporated into AES.
APS Director’s Office
APS Divisions

Accelerator Systems Division:

The Accelerator Systems Division provides engineering and physics support for the Advanced Photon Source.


APS Engineering Support Division:

The APS Engineering Support Division serves the APS user community by establishing and maintaining an integrated, facility-wide operations organization which provides a reliable and successful operation and high-quality user technical support.


X-ray Science Division:

The X-ray Science Division develops and builds state-of-the-art synchrotron radiation instrumentation and uses it in a safe and environmentally sound manner, to conduct world-class research at the forefront of science and technology.

APS Organization Charts