Konstantin Sukharnikov Scientific instrumentation

A hobby. An independent overview compiled from public sources by a science and space enthusiast. I am not involved in these missions or facilities; my own work is detector electronics at European XFEL. My projects →

Facility · Synchrotrons

Advanced Photon Source (APS-U)

High-energy fourth-generation storage ring (multi-bend achromat) in the tunnel of the former APS

Status
Operating
Location
Argonne (Illinois), USA
Operator
Argonne National Laboratory (DOE)
Next
2026–2027 beamlines return to science after the upgrade

Summary

A $815 million upgrade: a new fourth-generation ring in the old tunnel, up to 500 times brighter than before, and nine new beamlines. Argonne calls the upgraded APS the brightest synchrotron in the world (lightsources.org / Argonne, 5 February 2026). Together with ESRF-EBS, it is the model for high-energy upgrades (PETRA IV, SPring-8-II).

Now as of 9 Nov 2026

The project is officially complete: on 5 February 2026 the US Department of Energy gave its final approval; scientists have been working at the upgraded facility for more than a year (lightsources.org). Beamlines are gradually returning to science, and some are still being commissioned (APS Upgrade).

Key dates

  1. Jun 2024First X-rays on science beamlines of the new ringdone
  2. 5 Feb 2026Final DOE approval, project completedone

First X-rays on the beamlines: lightsources.org ("Shine on: Upgraded APS sees first X-ray light for science").

Timeline

  1. 5 Feb 2026Argonne announces the completion of the APS Upgrade — lightsources.org