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T he accelerator systems at NSRRC comprise a 1.5-GeV injector and a 1.5-GeV storage ring. The injector consists of a 50-MeV LINAC and a 1.5-GeV booster synchrotron. List of Parameters Storage Ring Maximum energy 1.5 GeV Maximum beam current, multibunch 240 mA Maximum beam current, single bunch 25 mA Beam lifetime ( 1.5 GeV, 200 mA ) ( 1.5 GeV, 200 mA )   > 9 h Circumference 120 m Orbital period 400 ns Number of superperiods 6 Lattice type Triple bend achromat Natural horizontal beam emittance 2.5 x 10 -8 m-rad RF frequency 499.654 MHz Harmonic number 200 Bending radius 3.495 m Critical photon energy 2.14 keV Bunch length ( 1σ ) 25 ps Maximum length of insertion devices 4.5 m Injector Injection energy 1.5 GeV Booster circumference 72 m Injection cycle rate 10 Hz Booster RF frequency 499.654 MHz LINAC energy 50 MeV Current Status and Major Upgrades Real Time Information Insertion Devices Main Parameters Name W20 U10 U5 U9 EPU5.6 Type hybrid hybrid hybrid hybrid pure Length of magnetic period (cm) 20 10 5 9 5.6 Number of periods 13 18 76 48 66 minimum magnet gap (mm) 22.5 24 18 18 18 Vertical (horizontal) magnetic field (Tesla) 1.8 0.945 0.64 1.245 0.672 (0.453) Horizontal (Vertical) defection parameter Ky (Kx) 33 8.8 2.99 10.46 3.52 (2.37) Maximum magnetic force (ton) 20 6 3 17 3.5 Photon energy range to be used (eV) 800-15000 5-100 60-1500 5-100 80-1400 Total length (m) 3.0 2.2 3.9 4.5 3.9 Installation Dec. 1994 Oct. 1995 Mar. 1997 Apr. 1999 Aug. 1999 Current Status of Insertion Devices R&D Magnet Related Information