JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{sugimoto:eefact2022-tuxat0103,
author = {H. Sugimoto and H. Koiso and A. Morita and Y. Ohnishi},
title = {{SuperKEKB Optics Tuning and Issues}},
% booktitle = {Proc. eeFACT'22},
booktitle = {Proc. 65th ICFA Adv. Beam Dyn. Workshop High Luminosity Circular e+e- Colliders (eeFACT'22)},
pages = {35--41},
eid = {TUXAT0103},
language = {english},
keywords = {optics, operation, betatron, luminosity, emittance},
venue = {Frascati, Italy},
series = {ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e- Colliders},
number = {65},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {02},
year = {2022},
issn = {2673-7027},
isbn = {978-3-95450-236-3},
doi = {10.18429/JACoW-eeFACT2022-TUXAT0103},
url = {https://jacow.org/eefact2022/papers/tuxat0103.pdf},
abstract = {{SuperKEKB is an electron-positron double-ring asymmetric-energy collider at the High Energy Accelerator Research Organization (KEK) in Japan. It adopts a novel collision method named nano-beam scheme to avoid the so-called hourglass effect. In the nano-beam scheme, two beams are squeezed to extremely small sizes at the interaction point and are collided with a large crossing angle between them. Since staring the collision operation in April 2018, numerous machine tunings and beam studies have been performed to improve the machine performance. The highest peak luminosity so far is 4.65 x 10³⁴ cm⁻² s⁻¹ reached in June 8th, 2022. This record is the world’s highest instantaneous luminosity and is more than 2 times higher than that of the previous KEKB collider. This talk starts with a brief introduction to SuperKEKB ring lattice design. The talk then presents some important topics related to beam optics tuning in the actual machine operation. Major issues to be resolved to boost the machine performance further are also addressed.}},
}