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Vibration and luminosity frequency analysis of the SuperKEKB collider / Serluca, Maurizio (Annecy, LAPP) ; Balik, Gael (Annecy, LAPP) ; Brunetti, Laurent (Annecy, LAPP) ; Aimard, Benjamin (Annecy, LAPP) ; Dominjon, Agnes (Annecy, LAPP) ; Bambade, Philip (IJCLab, Orsay) ; Wallon, Sandry (IJCLab, Orsay) ; Di Carlo, Salvatore (CERN) ; Masuzawa, Mika (KEK, Tsukuba) ; Uehara, Sadaharu (KEK, Tsukuba)
The SuperKEKB collider has entered the physics production phase with the aim to reach its target luminosity of 6×1035 cm−2s−1. Vibrations of the accelerator elements, especially around the Interaction Point (IP), could limit the performance of the collider. [...]
2022 - 9 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1025 (2022) 166123

Early Commissioning of the Luminosity Dither Feedback for SuperKEKB / Masuzawa, Mika (KEK, Tsukuba) ; Bambade, Philip (Orsay, LAL) ; Brown, David (SLAC) ; Di Carlo, Salvatore (Orsay, LAL) ; El Khechen, Dima (CERN) ; Fisher, Alan (SLAC) ; Funakoshi, Yoshihiro (KEK, Tsukuba) ; Jehanno, Didier (Orsay, LAL) ; Kawamoto, Takashi (KEK, Tsukuba) ; Nakamura, Shu (KEK, Tsukuba) et al.
SuperKEKB is an electron–positron double ring collider that aims to achieve a peak luminosity of 8 x 10$^{35}$ cm$^{-2}$ s$^{-1}$ by using what is known as the “nano-beam” scheme. A luminosity dither system is employed for collision orbit feedback in the horizontal plane. [...]
JACoW, 2019 - 4 p. - Published in : 10.18429/JACoW-IBIC2018-TUPC13 Published fulltext: PDF;
In : 7th International Beam Instrumentation Conference, Shanghai, China, 9 - 13 Sep, 2018, pp.TUPC13

Early Commissioning of the Luminosity Dither System for SuperKEKB / Funakoshi, Yoshihiro (KEK, Tsukuba) ; Bambade, Philip (Orsay, LAL) ; Brown, David (SLAC) ; Di Carlo, Salvatore (Orsay, LAL) ; El Khechen, Dima (CERN) ; Fisher, Alan (SLAC) ; Jehanno, Didier (Orsay, LAL) ; Kawamoto, Takashi (KEK, Tsukuba) ; Masuzawa, Mika (KEK, Tsukuba) ; Nakamura, Shu (KEK, Tsukuba) et al.
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. [...]
JACOW, 2019 - 5 p. - Published in : 10.18429/JACoW-eeFACT2018-WEXBA04 Published fulltext: PDF;
In : 62nd ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e− Colliders, Hong Kong, China, 24 - 27 Sep 2018, pp.WEXBA04

Achievements of KEKB / Abe, Tetsuo (KEK, Tsukuba) ; Akai, Kazunori (KEK, Tsukuba) ; Akasaka, Norimasa (KEK, Tsukuba) ; Akemoto, Mitsuo (KEK, Tsukuba) ; Akiyama, Atsuyoshi (KEK, Tsukuba) ; Arinaga, Mitsuhiro (KEK, Tsukuba) ; Cai, Yunhai (SLAC) ; Ebihara, Kiyokazu (KEK, Tsukuba) ; Egawa, Kazumi (KEK, Tsukuba) ; Enomoto, Atsushi (KEK, Tsukuba) et al.
The machine commissioning of KEKB started in December 1998 and its operation was terminated at the end of June 2010 to upgrade KEKB to SuperKEKB. In this paper, we summarize the history of KEKB and show the achievements made there..
2013 - Published in : Prog. Theor. Exp. Phys. 2013 (2013) 03A001

Betatron Sidebands Due to Electron Clouds Under Colliding Beam Conditions / Flanagan, John W ; Fukuma, Hitoshi ; Funakoshi, Yoshihiro ; Hiramatsu, Shigenori ; Ikeda, Hitomi ; Ohmi, Kazuhito ; Perevedentsev, Evgueni ; Tobiyama, Makoto ; Uehara, Sadaharu ; Uno, Shoji
Recently, we have observed vertical betatron sidebands in the transverse beam spectra of positron bunches at the KEKB LER which are associated with the presence of electron clouds. When the LER is operating in single-beam mode (no colliding bunches in the HER), these sidebands are sharply peaked. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.680

Vertical Beam Size Measurement by Streak Camera under Colliding and Single Beam Conditions in KEKB / Ikeda, Hitomi ; Flanagan, John W ; Fukuma, Hitoshi ; Funakoshi, Yoshihiro ; Hiramatsu, Shigenori ; Mitsuhashi, Toshiyuki ; Ohmi, Kazuhito ; Uehara, Sadaharu
Beam behavior of KEKB was studied by measurement of the beam size using a streak camera. Effect of the electron-cloud and the parasitic collision on the vertical beam size was examined in beam collision. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3194

Recent Progress at KEKB / Funakoshi, Yoshihiro ; Akai, Kazunori ; Ebihara, Kiyokazu ; Egawa, Kazumi ; Enomoto, Atsushi ; Flanagan, John W ; Fukuma, Hitoshi ; Furukawa, Kazuro ; Furuya, Takaaki ; Haba, Junji et al.
We summarize the machine operation of KEKB during past one year. Progress for this period, causes of present performance limitations and future prospects are described..
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1045

KEKB Performance / Funakoshi, Yoshihiro ; Akai, Kazunori ; Ebihara, Kiyokazu ; Egawa, Kazumi ; Enomoto, Atsushi ; Flanagan, John ; Fukuma, Hitoshi ; Furukawa, Kazuro ; Furuya, Takaaki ; Haba, Junji et al.
Tsukuba : KEK, 2004 - 3 p. External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.707

Смотрите также: похожие имена автора
447	Uehara, S
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1	Uehara, Shigeki
2	Uehara, Sho
5	Uehara, Shozo
1	Uehara, Shuzo

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