
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
I am protecting people: Beth Heyeck leads radiation safety program at the new Advanced Photon Source
As the radiological user facilities manager, Beth Heyeck and her team will be the main points of contact for safety measures as the upgraded APS starts its new life.
APS/User News
Work on the beamlines for the APS Upgrade is ramping up. One of the most visible recent projects has been the assembly of the Grand Tube at beamline 9-ID, which this video depicts. The Grand Tube is a 70-foot-long enclosure that will allow scientists to image extremely small materials in three dimensions.
APS/User News
Eric Rod, Jesse Smith, Maddury Somayazulu, Jonathan Lang, John Quintana, and Nenad Velisavljevic were recognized for their contributions to nuclear security.
Press Release
Dennis M. Mills, deputy associate laboratory director (DALD) for science and deputy director of the APS, will retire Nov. 6, 2023.
Conferences, Workshops, Meetings
Dec 13 2023
Jan 24 2024
May 06 2024 to May 10 2024
May 19 2024 to May 24 2024
Aug 19 2024 to Aug 23 2024
Seminars, Training, Schools, Etc
1:00 p.m. Virtual
11:00 a.m. Hybrid: 440/A105-A106 and Virtual
1:00 p.m. Virtual