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- E. Paoloni, N. Carmignani, F. Pilo
University of Pisa and INFN, Pisa, Italy
- S. Bettoni
CERN, Geneva, Switzerland
- M.E. Biagini, P. Raimondi
INFN/LNF, Frascati (Roma), Italy
- F. Bosi
INFN-Pisa, Pisa, Italy
- P. Fabbricatore, S. Farinon, R. Musenich
INFN Genova, Genova, Italy
- M.K. Sullivan
SLAC, Menlo Park, California, USA
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SuperB is an asymmetric (6.7 GeV HER, 4.18 GeV LER) e+ e− collider operating at the Y(4S) peak with a design peak luminosity of 1036 Hz/cm2 to be built in Italy in the very near future. The design luminosity is almost a factor hundred higher than that of the present generation comparable facilities. To get the design luminosity a novel collision scheme, the so called “large Piwinski angle with crab waist”, has been designed. The scheme requires a short focus final doublet to reduce the vertical beta function down to betay*=0.2 mm at the interaction point (IP). The final doublet will be composed by a set of permanent and superconducting (SC) quadrupoles. The SC quadrupole doublets QD0/QF1 have to be placed as close to the IP as possible. This layout is critical because the space available for the doublets is very small. An advanced design of the quadrupole has been developed, based on the double helical coil concept. The paper discusses the design concept, the construction and the results of test of a model of the superconducting quadrupole based on NbTi technology. Future developments are also presented.
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