Author: Oide, K.
Paper Title Page
TUOAB02 Design Study of the SuperKEKB Interaction Region Optics 950
 
  • H. Sugimoto, H. Koiso, A. Morita, Y. Ohnishi, K. Oide
    KEK, Ibaraki, Japan
 
  SuperKEKB is an upgrade project of KEKB e+e ring collider and is aimed to open up a new luminosity frontier. The target peak luminosity is 8x1035 cm-2 s-1. In order to achieve this target, a nano-beam scheme is adopted, in which colliding beams are squeezed to nano-scale sizes in the vertical direction at the interaction point (IP). The interaction region (IR) is an essential part of the SuperKEKB lattice design since the large chromaticity originated in the final focusing system (QCS) and strong lattice nonlinear forces make the particle motion unstable. An optics with detailed hardware specifications has been designed to optimize a performance of the beam dynamics. Design studies of IR taking into account a possible QCS imperfection are reported in this paper.  
slides icon Slides TUOAB02 [9.899 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-TUOAB02  
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THPRI006 Dynamic Aperture Study of SuperKEKB with Beam-beam Effect 3773
 
  • A. Morita, H. Koiso, Y. Ohnishi, K. Oide, H. Sugimoto
    KEK, Ibaraki, Japan
 
  The SuperKEKB is an asymmetric-energy double-ring collider to achieve 40 times higher luminosity than that of the KEKB B-factory. The strong non-linearity of both final focusing and beam-beam force, which are required to achieve such high luminosity, reduce dynamic aperture and limit Touschek beam lifetime. In order to achieve long enough beam lifetime for collision operation, we are studying the dynamic aperture under beam-beam effect. The study results of both dynamic aperture and Touschek beam lifetime are reported in this presentation.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPRI006  
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