Complex sentence: A successful proposal was made to the US Air Force Office of Scientific Research, and the ring, named Tantalus, was completed in 1968-the first storage ring dedicated to the production of synchrotron radiation.
Split into simpler sentences: A successful proposal was made to the US Air Force Office of Scientific Research, and the ring, named Tantalus, was completed in 1968. Tantalus was the first storage ring dedicated to the production of synchrotron radiation.