Rendering of the proposed National Synchrotron Light Source II. NSLS-II is a proposed new state-of-the-art medium energy storage ring designed to deliver world leading brightness and flux. The facility will be able to produce x-rays up to 10,000 times brighter than those produced at the NSLS today. The current NSLS is in the foreground at left. The Center for Functional Nanomaterials is at right.