Author/s: F. Alessandria, S. Angius, G. Bellomo, P. Fabbricatore, S. Farinon, U. Gambardella, R. Marabotto, R. Musenich, R. Repetto, M. Sorbi and G.Volpini
Title: Technical Design Report of a Superconducting Model Dipole for FAIR SIS300
Report: INFN / TC_09 / 4
Date: 15-05-2009
PACS:
Pubblished on:
PDF File: INFN-TC-09-4.pdf
Url:
Abstract: This report deals with the R&D activities aimed at developing the high field rapidly-cycling super-conducting dipoles needed for SIS300 synchrotron of the FAIR facility at GSI. The present lattice design includes 48 long dipoles with magnetic length 7.757 m and 12 short dipoles with magnetic length 3.879 m. The coils have two main features: they are curved (the corresponding sagitta is 112.8 mm for long dipoles), and they are fast ramped (for a superconducting magnet). Both these characteristics demand a challenging R&D, aimed at the development of the required low loss conductor, a robust design with respect to fatigue issues and a suitable winding technology. The Italian National Institute of Nuclear Physics (INFN) is performing this R&D. A project, called DISCORAP (“Dipoli SuperCOnduttori RApidamente Pulsati”), started in 2006 in accordance with a specific INFN-FAIR Memorandum of Understanding signed by both institutions in December 2006. The aim is to have a complete cold mass model of the short dipole ready in the summer of 2009. After a preliminary test of the cold mass in a vertical cryostat, it will be integrated into a horizontal cryostat for a test series at GSI.

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