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Title Design and Test of the First Long Nb3Sn Quadrupole by LARP Submitted 09-DEC-09 05:41 (UTC)
Classification 07 Accelerator Technology Modified 02-FEB-10 16:02 (UTC)
Presentation Contributed Oral
Speaker: Giorgio Ambrosio Paper ID MOOCRA02
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Author(s) Giorgio Ambrosio, Guram Chlachidze, Michael Joseph Lamm, Alfred Nobrega, Eric Prebys (Fermilab, Batavia), Jesse Schmalzle, Peter Wanderer (BNL, Upton, Long Island, New York), Shlomo Caspi, Helene Felice, Paolo Ferracin, GianLuca Sabbi (LBNL, Berkeley, California), Thomas Walter Markiewicz (SLAC, Menlo Park, California)
Abstract The first Nb3Sn Long Quadrupole (LQS01) designed and fabricated by the US LHC Accelerator Research Program (LARP) reached its target gradient of 200 T/m during the first test. LQS01 is a 90 mm aperture, 4 meter long quadrupole with Nb3Sn coils made of RRP 54/61 strand (by Oxford Superconducting Technology). The two-layer coil design is based on the LARP 1m Technological Quadrupoles (TQC and TQS). The mechanical structure is based on the TQS structure implementing an aluminum shell preloaded by using bladders and keys. In 2005 LARP, in agreement with DOE and CERN, set the goal of reaching 200 T/m in a long Nb3Sn quadrupole by the end of 2009. Achieving this goal in the first test shows the maturity reached by the Nb3Sn technology for possible application to particle accelerators. Additional tests have been performed aiming at reproducing the performance of the most recent TQ models in order to demonstrate that there are no significant scale-up issues with this technology.
Word Count: 161  Character Count: 975
Funding Agency This work was supported by the U.S. Department of Energy.

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