Early Commissioning of the Luminosity Dither System for SuperKEKB

• DOI: 10.18429/jacow-eefact2018-wexba04
• Publication Date: 2018-09-24
• Authors: Y. Funakoshi; Philip Bambade; David R. Brown; S. Di Carlo; Dima El Khechen; Alan Fisher; Didier Jehanno; Takashi Kawamoto; M. Masuzawa; S. Nakamura; T. Oki; Chengguo Pang; Michael Sullivan; M. Tobiyama; S. Uehara; Ryuichi Ueki; U. Wienands
• Keywords: Dither

SuperKEKB is an electron-positron double ring collider at KEK which aims at a peak luminosity of 8 x 10³⁵ cm⁻²s⁻¹ by using what is known as the ’nano-beam’ scheme. A luminosity dither system is employed for collision orbit feedback in the horizontal plane. This paper reports a system layout of the dither system and algorithm tests during the SuperKEKB Phase 2 commissioning.<br/>Proceedings of the 62th ICFA ABDW on High Luminosity Circular e$^+$e$^-$ Colliders, eeFACT2018, Hong Kong, China<br/>