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

APS Users Organization (APSUO)

The APSUO is responsible for advising the APS Associate Laboratory Director in the following areas:

  • The Organization will serve as an advocacy group for the Facility and its user community.
  • The Organization will provide advice to the ALD on matters affecting the user community.
  • The Organization will assure good communication between the APS user community and the APS management.
Current Election
Thank you to the APS user community for participating in the election. Next election will be in 2021.

Steering committee for the APS Users Organization.


Upcoming APSUO meeting dates.

Compton Award

The APSUO Arthur H. Compton award recognizes important technical or scientific accomplishment at, or beneficial to, the Advanced Photon Source.

Franklin Award 

The APSUO Rosalind Franklin Young Investigator Award recognizes important technical or scientific accomplishment by a young investigator that depended on, or is beneficial to, the APS.

The Gopal K. Shenoy Excellence in Beamline Science Award

The APSUO Award for Excellence in Beamline Science recognizes beamline scientists who have made significant scientific contributions in their area of research or instrumentation development and have promoted the user community in this area.


The bylaws upon which the APS Users Organization is based.


APSUO Steering Committee


Back row from left: Jason Benedict (State University of New York, Buffalo), Andreas Kreyssig (Iowa State University), Susan White-DePace (User Program Administration), Amy Clark (Los Alamos National Laboratory); middle row from left: Don Brown (Los Alamos National Laboratory), Yu-Sheng Chen (The University of Chicago); front row from left: Xuemei Cheng (Bryn Mawr College), Stephen Streiffer (Director, Advanced Photon Source), Constance Vanni (User Program Administration), Tim Fister (Argonne National Laboratory). Not pictured: Leslie Butler (Louisiana State University), Alan Goldman (Iowa State University/Ames Laboratory), Michael Pierce (Rochester Institute of Technology), Martina Ralle (Oregon Health & Science University), and Yugang Sun (Argonne National Laboratory).


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