Today, 36 years ago, on April 26, 1989 (Lunar Calendar, March 21, 1989), China's first dedicated synchronous radiation device was built and decommissioned. National synchronous radiation laboratory park on April 26, 1989, China's first dedicated synchronous radiation device was built and decommissioned. National synchronous radiation laboratory (NSRL) first phase of the project was grounded on November 20, 1984, and on April 26, 1989 the decommissioned light, from the first injection of electron beam into the storage ring to obtaining storage beam stream, produced a very strong synchronous radiation light, only 23 hours, is rare in the world's similar devices.