
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
Scientists at Argonne are helping to repurpose magnets swapped out from the Laboratory’s Advanced Photon Source (APS) for use in a new machine being built in New York by two of Argonne’s sister DOE laboratories, Brookhaven National Laboratory and Thomas Jefferson National Accelerator Facility (Jefferson Lab).
Press Release
Argonne will create and operate a suite of specialized capabilities that may help understand the effects of the changing climate on the air, water, soil and bioeconomy.
APS/User News
Two Photon Sciences (PSC) employees, Fanny Rodolakis, physicist, and Becky Sikes, lead foreign visit and assignment administrator for the APS user program office, have been recognized for their leadership of the PSC Diversity, Equity, Inclusion and Accessibility (DEIA) Council.
APS/User News
Register for the APS Upgrade session at the Canadian Light Source users meeting.
The Advanced Photon Source (APS) upgrade is well underway, and the facility will return to operation in 2024 with enhanced capabilities. Through the CLS@APS Partner User Program, Canadian users can access the APS beamlines. Thus the Canadian Light Source (CLS) will host a virtual session on the science potential of the upgraded APS on Thursday, Oct. 26 as part of the CLS Users Meeting
Conferences, Workshops, Meetings
Oct 09 2023 to Oct 13 2023
Cape Town, South Africa
Oct 25 2023
Nov 01 2023
Nov 06 2023 to Nov 10 2023
May 19 2024 to May 24 2024
Seminars, Training, Schools, Etc
11:00 a.m. Hybrid: 440/A105-A106 and Virtual