A Superconducting Magnet Upgrade of the ATF2 Final Focus

B. Parker M. Anerella J. Escallier P. He A. Jain A. Marone P. Wanderer C. Hauviller 1 E. Marin 1 R. Tomas 1 F. Zimmermann 1 B. Bolzon 2 A. Jeremie 2 N. Kimura K. Kubo T. Kume S. Kuroda T. Okugi T. Tauchi N. Terunuma T. Tomaru K. Tsuchiya J. Urakawa A. Yamamoto P. Bambade 3 P. Coe D. Urner A. Seryi 4 C. Spencer 4 G. White 4
1 CERN - European Organization for Nuclear Research
2 LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules - Laboratoire d'Annecy de Physique des Particules
3 LAL - Laboratoire de l'Accélérateur Linéaire
4 SLAC - Stanford Linear Accelerator Center
Abstract : The KEK ATF2 facility, with a well instrumented beam line and Final Focus (FF), is a proving ground for linear collider (LC) technology to demonstrate the extreme beam demagnification and spot stability needed for a LC FF*. ATF2 uses water cooled magnets but the baseline ILC calls for a superconducting FF**. Thus we plan to replace some ATF2 FF magnets with superconducting ones made via direct wind construction as planned for the ILC. With no cryogenic supply at ATF2, we look to cool magnets and current leads with a few cryocoolers. ATF2 FF coil winding is underway at BNL and production warm magnetic measurements indicate good field quality. Having FF magnets with larger aperture and better field quality than present FF might allow reducing the beta function at the FF for study of focusing regimes relevant to CLIC. Our ATF2 magnet cryostat will have laser view ports for cold mass movement measurement and FF support and stabilization requirements under study. We plan to make stability measurements at BNL and KEK to relate ATF2 FF magnet performance to that of a full length ILC R&D prototype at BNL. We want to be able to predict LC FF performance with confidence.
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Dernière modification le : jeudi 11 janvier 2018 - 06:14:18
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B. Parker, M. Anerella, J. Escallier, P. He, A. Jain, et al.. A Superconducting Magnet Upgrade of the ATF2 Final Focus. 1st International Particle Accelerator Conference (IPAC 2010), May 2010, Koyto, Japan. Joint Accelerator Conferences Website, pp.3440-3442, 2010. ⟨in2p3-00496897⟩

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