話題
SuperKEKB加速器の設計と建設―最近の発展―
2015 年 12 巻 2 号 p. 78-88
詳細
2015 年 12 巻 2 号 p. 78-88
The SuperKEKB project is an experiment with a positron-electron collider built to explore new phenomena at the particle physics. The target luminosity is 8×1035 cm-2s-1, which is 40 times the KEKB accelerator that has been operated for 11 years up to 2010. The consideration of SuperKEKB has started since 2001 and the strategy of luminosity upgrade was “high-current” scheme in the early stage. However, difficulties such as bunch lengthening due to coherent synchrotron radiation and huge reinforcement of RF system arise. We have changed the strategy from the high-current scheme to a “nano-beam” scheme since 2009. The latest upgrade plan and a recent progress of the accelerator construction have been reported.
