Progress and future of shanghai synchrotron radiation facility

Shanghai Synchrotron Radiation Facility (SSRF), a 3.5 GeV, 3.9 nm-rad synchrotron radiation light source, started its user operation in May 2009. By the end of 2015, SSRF has served more than 12000 users and produced major experimental results. The SSRF operation achieved a machine availability of >98% and mean time between failure (MTBF)>80 hours. The electron orbit stability in the storage ring is kept within sub-micron levels. A proposal for SSRF Phase-II Project got approval in 2015. It consists of sixteen advanced beamlines, user experimental supports, beamline technique supports and machine upgrade. Free electron laser (FEL) technology is the next focus of SSRF. Shanghai Deep Ultraviolet Free-Electron Laser (SDUV-FEL), a test facility for new FEL principles, has been operated for 5 years and got a serial of important results. Shanghai X-ray Free-Electron Laser (SXFEL), a soft X-ray FEL test facility, started construction at the end of 2014. It will be commissioned in 2017. (author)