Abstract
An insertion device, MPW♯13, which can be operated in both wiggler and undulator modes, is presently under construction at the Photon Factory (PF). When installed in the PF storage ring, this device will produce wiggler radiation in the hard x-ray region, and also undulator radiation in the vacuum-ultraviolet (VUV) and soft x-ray regions. The wiggler structure employs 27 magnetic poles with a period length of 18 cm. The maximum peak field of the device of 1.5 T is attained via the hybrid configuration of its magnetic poles. Calculations of the spectral brilliance of the device exhibits the following features: in the wiggler mode, the brilliance at 10 keV will exceed that of the PF bending magnet radiation by a factor of 30; and in the undulator mode it will be between 10 and 100 times higher, from 10 eV to 1 keV, utilizing up to the fifth harmonic.
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