
The Advanced Photon Source
a U.S. Department of Energy Office of Science User Facility
THE ADVANCED PHOTON SOURCE UPGRADE IS IN PROGRESS
The Advanced Photon Source is undergoing a comprehensive upgrade to replace its original electron storage ring with a new, state-of-the-art accelerator. This will increase the brightness of APS X-ray beams by up to 500 times, and new beamlines will be constructed to take advantage of these improved capabilities. The facility will be closed for operations during this time.
Visit the APS Upgrade webpage for information about the project’s progress and future science at the facility. We look forward to completing the project and welcoming our users back to the APS next year.

Working during the shutdown?
Download the Guide to the APS Shutdown here.
Download the Guide to the APS Shutdown here.
APS/User News
WTTW’s Chicago Tonight featured a segment on the $815 million upgrade to Argonne National Laboratory's Advanced Photon Source. Project director Jim Kerby, physicist and group leader Jonathan Almer, and project manager Elmie Peoples-Evans discuss the project, what it means for the user facility and its impact on science.
APS/User News
Culminating decades of research, scientists at three DOE national laboratories have deployed a cutting-edge, fully functional magnetic device known as an undulator that uses superconducting wire made of niobium and tin.
APS/User News
GSK’s vaccine, Arexvy, is based in part on structural biology work conducted more than a decade ago at the Advanced Photon Source. Arexvy has been shown to prevent severe illness brought on by respiratory syncytial virus, which affects millions every year. The U.S. Food and Drug Administration has approved Arexvy for people 60 years old or older.
APS/User News
The team assembling the new electron storage ring for the Advanced Photon Source (APS) has achieved a significant milestone with the completion of their 100th module. The new storage ring, which will be installed as part of the APS Upgrade project, will be made up of 200 modules, each one containing several powerful electromagnets (each carefully aligned with one another), a complex vacuum system and various electrical and cooling systems.
Conferences, Workshops, Meetings
Jun 05 2023
Jun 12 2023
Jun 14 2023
Jun 25 2023 to Jun 30 2023
Jul 26 2023
Seminars, Training, Schools, Etc
11:00 a.m. Virtual
11:00 a.m. Hybrid: 440/A105-A106 and Virtual
3:00 p.m. Virtual
11:00 a.m. Hybrid: 440/A105-A106 and Virtual