APS Upgrade storage ring installation: before and after
As part of a comprehensive upgrade to the Advanced Photon Source, the original electron storage ring was removed and a brand new, state-of-the-art storage ring installed. Here is a look at how the installation started (with an empty tunnel) and how it's going (with most of the new ring installed). For more on the APS Upgrade visit aps.anl.gov/APS-Upgrade.