Superconducting Multipole Wigglers: State of Art
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چکیده
Superconducting multipole wigglers installed on synchrotron radiation sources are the powerful tools for researches in various areas of science and technics. SuperConducting Multipole Wigglers (SCMWs) represent sign-alternating sequence of magnets with lateral magnetic field. Relativistic electrons, passing through such set of magnetic elements, create radiation with properties of synchrotron radiations depending on maximum field, its period and poles number. SCMWs are installed on Synchrotron Radiation (SR) sources to increase brightness and rigidity of the radiation. The first superconducting wiggler has been made and installed on the VEPP-3 electron storage ring as a generator of synchrotron radiation in 1979. Nowadays tens of the wigglers are successfully working in the various synchrotron radiation centers and more than 10 of them were developed and made in Budker INP. These wigglers may be divided into 3 groups: 1Long period 14.5-20 cm with field 7-7.5Tesla. 2Medium period 4.8-6 cm with field ~ 3.5-4.5 Tesla 3Short period 3-3.5 cm with field ~2-2.5 Tesla. The description of magnetic properties of the wigglers, parameters of both the cryogenic and vacuum systems and their technical decisions are presented in the report.
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