| Paper |
Title |
Page |
| TUPAB07 |
Commissioning of Positron Damping Ring and the Beam Transport for SuperKEKB |
152 |
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- N. Iida, Y. Funakoshi, H. Ikeda, T. Ishibashi, H. Kaji, T. Kamitani, M. Kikuchi, T. Kobayashi, H. Koiso, F. Miyahara, T. Mori, Y. Ohnishi, Y. Seimiya, H. Sugimoto, H. Sugimura, R. Ueki, Y. Yano, D. Zhou
KEK, Ibaraki, Japan
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The Positron Damping Ring (DR) for SuperKEKB successfully started its operation in February 2018, and the commissioning was continued until the end of SuperKEKB Phase 2 in July without serious troubles. This paper describes achievements of the beam commissioning of injection and extraction lines (LTR and RTL) between the LINAC and DR. In the LTR commissioning, the positron beam with high emittance, wide energy spread, and high charge were transported and injected into the DR. In the RTL commissioning, special cares were necessary to preserve the low emittance. The observed emittance growth in the RTL was not a problem for Phase 2, but it should be resolved in the coming Phase 3. In this paper, brief results of the commissioning of the DR is also reported.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-eeFACT2018-TUPAB07
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| About • |
paper received ※ 20 October 2018 paper accepted ※ 19 February 2019 issue date ※ 21 April 2019 |
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| TUPBB05 |
Beam Instrumentation at SuperKEKB |
169 |
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- G.M. Mitsuka, M. Arinaga, J.W. Flanagan, H. Fukuma, H. Ikeda, H. Ishii, S.H. Iwabuchi, K. Mori, E. Mulyani, M. Tejima, M. Tobiyama
KEK, Ibaraki, Japan
- G. Bonvicini
Wayne State University, Detroit, Michigan, USA
- E. Mulyani
Sokendai, Ibaraki, Japan
- G.S. Varner
University of Hawaii, Honolulu,, USA
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Phase 2 commissioning of the SuperKEKB electron-positron collider has been performed with final focus optics from February 8 to July 17, 2018. The main aims of Phase 2 commissioning were to verify the novel nano-beam collision scheme and achieve the machine luminosity O(1034 cm-2s-1). The beam instruments including the bunch-by-bunch feedback and orbit feedback systems, which are central to the beam diagnostics at SuperKEKB, were successfully operated throughout Phase 2. In this talk, we will present the commissioning results focusing on beam diagnostics and show prospects for the final phase of commissioning from next spring.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-eeFACT2018-TUPBB05
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| About • |
paper received ※ 26 September 2018 paper accepted ※ 19 February 2019 issue date ※ 21 April 2019 |
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| WEPBB01 |
Operation of SuperKEKB in Phase 2 |
286 |
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- Y. Funakoshi, Y. Arimoto, H. Ikeda, T. Ishibashi, N. Ohuchi, S. Terui, X. Wang
KEK, Ibaraki, Japan
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The Phase 2 commissioning of SuperKEKB was performed from March to July 2018. In this report, the operation statistics and the QCS quench issue which we encountered during Phase 2 are described.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-eeFACT2018-WEPBB01
|
|
| About • |
paper received ※ 20 October 2018 paper accepted ※ 19 February 2019 issue date ※ 21 April 2019 |
|
| Export • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
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