Third-Generation Synchrotron Radiation Source at the Joint Institute of Nuclear Research

An accelerator complex DÉLSI (Dubnen Electron Synchrotron) is planned for constuction as source of synchrotron radiation with high brightness in a wide spectral range – from far infrared (100 m) up to high-energy x-ray (50 keV). This will make it possible to perform a wide range of research at the Joint Institute of Nuclear Research. The DÉLSI complex includes a linear electron accelerator up to energy 800 MeV and a storage ring with a 136 m perimeter at 1.2 GeV, in which a 10 T wiggler and an undulator (0.75 T, 150 periods) are built-in. The linear electron accelerator of the DÉLSI complex will be used for injection and for producing free-electron lasers. The parameters of synchrotron radiation from the bending magnets and built-in devices of the DÉLSI complex, the magnetic structure of the storage ring with the wiggler and undulator switched off, the effect of built-in devices on the ring optics, and the effect of errors on the closed orbit are examined; the synchrotron radiation parameters are briefly described.     

Multipoles of the SLS storage ring: manufacturing and magnetic measurements

The quadrupoles and sextupoles for the Swiss Light Source had severe requirements on the manufacturing tolerances and the alignment of their magnetic axis. The 306 multipoles were manufactured, and magnetically measured at BINP and after delivery also at PSI. The features of manufacturing and precise magnetic measurements of SLS multipoles are discussed.