Abstract Submitted for the TSF07 Meeting of The American Physical Society AC losses in conventional and block coil geometry superconduct- ing dipoles1 ALFRED MCINTURFF,

Submitted for the TSF07 Meeting of The American Physical Society AC losses in conventional and block coil geometry superconducting dipoles1 ALFRED MCINTURFF, PETER MCINTYRE, AKHDIYOR SATTAROV, Department of Physics, Texas A&M University — The upgrade of injection synchrotrons of LHC requires pulsed magnets reaching 5T with a ramp rate of the order of 1-2T/s. AC losses in the magnets are the major concern. A standard method of AC loss evaluations underestimates experimental results in the critical high field region A modified method used to estimate AC losses in GSI001 model magnet tested recently at BNL gave an excellent agreement with the experimental results. Both methods were applied to analyze recent designs of a cosine current distribution and block-coil geometry superconducting dipoles. We find that the simple and robust block-coil geometry dipole over performs conventional one in both: reduced AC losses and less amount of superconducting wire. 1Work is supported by US Dept. of Energy, Grant DE-FG02-06ER41405. Akhdiyor Sattarov Department of Physics, Texas A&M University Date submitted: 05 Oct 2007 Electronic form version 1.4