Sector 27 on location

THE APS UPGRADE: BUILDING A BRIGHTER FUTURE

The future of the Advanced Photon Source is about to get brighter. The APS is undergoing a massive upgrade that will replace the current electron storage ring with a new, more powerful model. 

BEAMLINE COMMISSIONING IS UNDERWAY

The new Advanced Photon Source storage ring is complete and the facility’s beamlines are in the process of returning to scientific operation. Every APS beamline will undergo operational, technical and scientific commissioning before restarting its general user program. Initial operations will be at a reduced current and availability as the machine is tuned up. 

Click here to see the current beamline progress chart. Updated March 10, 2025 

Guide To The Advanced Photon Source Shutdown
Working during the shutdown?
Download the Guide to the APS Shutdown here.
Four scientists looking at a machine.          

Featured Photo

Users Junyoung Kwon and Jimin Kwak, center, with Argonne physicists Mary Upton, left, and Jung Ho Kim, right, at the newly upgraded beamline 27-ID. Image by Mark Lopez, Argonne National Laboratory.
The team behind the assembly of the Grand Tube stands in front of the finished enclosure at beamline 9-ID of the Advanced Photon Source.  
 
APS Upgrade Video Playlist 
Click here for a selection of videos about the APS Upgrade

APS Upgrade News

A current event: Advanced Photon Source hits target of 200 mA of electron beam current
A new era of research comes into focus
Advanced Photon Source achieves world-record electron beam emittance measurement
Click image for larger version

Upgrade Updates

Upgraded APS Update: March 2025
Questions about the APS-U project? Email us at apsupgrade@anl.gov.
See Argonne's APS-U page