Design activities, conductor R&D and model coil construction are under way for developing a curved fast cycled superconducting dipole for the SIS300 synchrotron at FAIR. The main target is the construction within 2009 of a half-length prototype magnet (cold mass fully integrated in a horizontal cryostat). This magnet is designed for a maximum central field of 4.5 T in a bore of 100 mm, with a ramp rate of 1 T/s. The magnetic length of the prototype is 3.8 m with a curvature radius of 66.67 m (27 mm of sagitta). This paper describes the magnetic design of the dipole. Emphasis is given also to the study of the losses due to the eddy currents in collar and yoke. The study has been performed with finite element codes, and it allowed to optimize the configuration in order to minimize both the peak field on the conductor and the total losses.
Electromagnetic design of the prototype dipole for the FAIR SIS300 / M. Sorbi, F. Alessandria, G. Bellomo, G. Volpini, S. Farinon, P. Fabbricatore, R. Musenich, U. Gambardella - In: WAMSDO : workshop accelerator magnet superconductors, design and optimization, CERN, Geneva, Switzerland, 19-23 May 2008 : proceedings / [a cura di] E. Todesco. - Geneve : CERN, 2009 Jan 19. - ISBN 978-92-9083-325-3. - pp. 160-162 (( convegno Workshop on accelerator magnet superconductors, design and optimization tenutosi a CERN, Ginevra nel 2008.
Electromagnetic design of the prototype dipole for the FAIR SIS300
M. SorbiPrimo
;G. Bellomo;
2009
Abstract
Design activities, conductor R&D and model coil construction are under way for developing a curved fast cycled superconducting dipole for the SIS300 synchrotron at FAIR. The main target is the construction within 2009 of a half-length prototype magnet (cold mass fully integrated in a horizontal cryostat). This magnet is designed for a maximum central field of 4.5 T in a bore of 100 mm, with a ramp rate of 1 T/s. The magnetic length of the prototype is 3.8 m with a curvature radius of 66.67 m (27 mm of sagitta). This paper describes the magnetic design of the dipole. Emphasis is given also to the study of the losses due to the eddy currents in collar and yoke. The study has been performed with finite element codes, and it allowed to optimize the configuration in order to minimize both the peak field on the conductor and the total losses.
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