|
1.
|
The SuperKEKB Has Broken the World Record of the Luminosity
/ Funakoshi, Yoshihiro (KEK, Tsukuba) ; Abe, Tetsuo (KEK, Tsukuba) ; Akai, Kazunori (KEK, Tsukuba) ; Arimoto, Yasushi (KEK, Tsukuba) ; Egawa, Kazumi (KEK, Tsukuba) ; Enomoto, Shun (KEK, Tsukuba) ; Fukuma, Hitoshi (KEK, Tsukuba) ; Furukawa, Kazuro (KEK, Tsukuba) ; Iida, Naoko (KEK, Tsukuba) ; Ikeda, Hitomi (KEK, Tsukuba) et al.
The SuperKEKB broke the world record of the luminosity in June 2020 in the Phase 3 operation. The luminosity has been increasing since then and the present highest luminosity is 4.65 x 10³⁴ cm⁻²s⁻¹ with β_{y}^{*} of 1 mm. [...]
2022 - 5 p.
- Published in : JACoW IPAC 2022 (2022) 1-5
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1-5
|
|
|
2.
|
|
|
3.
|
Overall Injection Strategy for FCC-ee
/ Ogur, Salim (CERN) ; Aiba, Masamitsu (PSI, Villigen) ; Antoniou, Fanouria (CERN) ; Barnyakov, Alexey (Novosibirsk, IYF) ; Chaikovska, Iryna (Orsay, LAL) ; Charles, Tessa (CERN) ; Chehab, Robert (Orsay, LAL) ; Etisken, Ozgur (Ankara U.) ; Furukawa, Kazuro (KEK, Tsukuba) ; Härer, Bastian (CERN) et al.
The Future Circular electron-positron Collider (FCC-ee) requires fast cycling injectors with very low extraction emittances to provide and maintain extreme luminosities at center of mass energy varying between 91.2-385 GeV in the collider. For this reason, the whole injector complex table is prepared by putting into consideration the minimum fill time from scratch, bootstrapping, transmission efficiency as well as store time of the beams in synchrotrons to approach equilibrium emittances. [...]
JACOW, 2019 - 8 p.
- Published in : 10.18429/JACoW-eeFACT2018-TUPAB03
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.TUPAB03
|
|
|
4.
|
Positron source for FCC-ee
/ Chaikovska, Iryna (Orsay, LAL) ; Apyan, Armen (Yerevan Phys. Inst.) ; Chehab, Robert (Orsay, LAL) ; Enomoto, Yoshinori (KEK, Tsukuba) ; Faus-Golfe, Angeles (Orsay, LAL) ; Furukawa, Kazuro (KEK, Tsukuba) ; Han, Yanliang (Orsay, LAL) ; Kamitani, Takuya (KEK, Tsukuba) ; Martyshkin, Pavel (Novosibirsk, IYF) ; Miyahara, Fusashi (KEK, Tsukuba) et al.
The FCC-ee is a high-luminosity, high-precision circular collider to be constructed in a new 100 km tunnel in the Geneva area. The physics case is well established and the FCC-ee operation is foreseen at 91 GeV (Z-pole), 160 GeV (W pair production threshold), 240 GeV (Higgs resonance) and 365 GeV ($t \bar{t}$ threshold). [...]
CERN-ACC-2019-145.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPMP003
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPMP003
|
|
|
5.
|
Linac and damping ring designs for the FCC-ee
/ Ogur, Salim (CERN ; Bogazici U.) ; Barnyakov, Alexey (Novosibirsk, IYF) ; Chaikovska, Iryna (Orsay, LAL) ; Chehab, Robert (Orsay, LAL) ; Furukawa, Kazuro (KEK, Tsukuba) ; Iida, Naoko (KEK, Tsukuba) ; Kamitani, Takuya (KEK, Tsukuba) ; Levichev, Alexey (Novosibirsk, IYF) ; Martyshkin, Pavel (Novosibirsk, IYF) ; Miyahara, Fusashi (KEK, Tsukuba) et al.
We report the design of the pre-injector chain for the Future Circular e$^+$e$^−$ Collider (FCC-ee) system. The electron beam from a low-emittance RF gun is accelerated by an S-band linac up to 6 GeV. [...]
CERN-ACC-2019-073.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPMP002
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPMP002
|
|
|
6.
|
Beam-based alignment of the SuperKEKB linac quadrupoles
/ Ogur, S (Bogazici U. ; CERN) ; Iida, N (KEK, Tsukuba) ; Kamitani, T (KEK, Tsukuba) ; Oide, K (CERN ; KEK, Tsukuba) ; Zimmermann, F (CERN)
The positron linac of SuperKEKB contains accelerating structures surrounded by quadrupoles without nearby beam-position-monitors (BPMs) or steering magnets. In this situation, standard techniques for beam steering or beam-based-alignment are not efficient. [...]
2019 - 13 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 925 (2019) 199-211
|
|
|
7.
|
Layout and Performance of the FCC-ee Pre-Injector Chain
/ Ogur, Salim (CERN ; Bogazici U.) ; Charles, Tessa (CERN ; Melbourne U.) ; Oide, Katsunobu (CERN ; KEK, Tsukuba) ; Barnyakov, Alexey (Novosibirsk, IYF) ; Chaikovska, Iryna (Orsay, LAL) ; Rinolfi, Louis (CERN) ; Chehab, Robert (Orsay, LAL) ; Furukawa, Kazuro (KEK, Tsukuba) ; Iida, Naoko (KEK, Tsukuba) ; Kamitani, Takuya (KEK, Tsukuba) et al.
The Future Circular e + e − Collider pre-injector chain consists of a 6 GeV S-Band linac, a damping ring at 1.54 GeV and pre-booster ring to reach 20 GeV for injection to the main booster. The electron and positron beams use the same accelerator chain alternatively. [...]
CERN-ACC-2018-093.-
2018 - 8 p.
- Published in : (2018) , pp. MOPMF034
- Published in : J. Phys.: Conf. Ser. 1067 (2018) 022011
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.MOPMF034
|
|
|
8.
|
Experimental Activities on High Intensity Positron Sources Using Channeling
/ Chaikovska, Iryna (Orsay, LAL) ; Artru, Xavier (Lyon, IPN) ; Chehab, Robert (Orsay, LAL) ; Furukawa, Kazuro (KEK, Tsukuba) ; Guler, Hayg (Orsay, LAL) ; Kamitani, Takuya (KEK, Tsukuba) ; Kubytskyi, Viacheslav (Orsay, LAL) ; Miyahara, Fusashi (KEK, Tsukuba) ; Rodin, Volodymyr (Taras Shevchenko U.) ; Satoh, Masanori (KEK, Tsukuba) et al.
The positron source under investigation is using channeling radiation of multi-GeV electrons in a tungsten crystal. The radiated photons are impinging on the amorphous targets creating e⁺e⁻ pairs. [...]
CERN-ACC-2017-270.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-WEPIK002
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEPIK002
|
|
|
9.
|
Optimization of an hybrid positron source using channeling
/ Chaikovska, I (Orsay, LAL) ; Chehab, R (Orsay, LAL) ; Guler, H (Orsay, LAL) ; Sievers, P (CERN) ; Artru, X (Lyon, IPN) ; Chevallier, M (Lyon, IPN) ; Suwada, T (KEK, Tsukuba) ; Satoh, M (KEK, Tsukuba) ; Kamitani, T (KEK, Tsukuba) ; Furukawa, K (KEK, Tsukuba) et al.
The hybrid positron source made of a crystal-radiator, as a source of channeling radiation, and an amorphous converter is briefly described. Optimization of the heating effects and thermal shocks led to a granular converter made of small tungsten spheres. [...]
2017 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 402 (2017) 58-62
In : 7h International Conference on Charged & Neutral Particles Channeling Phenomena, Sirmione, Italy, 23 - 30 Sep 2016, pp.88
|
|
|
10.
|
Investigations on a hybrid positron source with a granular converter
/ Artru, X (Lyon, IPN) ; Chaikovska, I (Orsay, LAL) ; Chehab, R (Lyon, IPN) ; Chevallier, M (Lyon, IPN) ; Dadoun, O (Orsay, LAL) ; Furukawa, K (KEK, Tsukuba) ; Guler, H (Orsay, LAL) ; Kamitani, T (KEK, Tsukuba) ; Miyahara, F (KEK, Tsukuba) ; Satoh, M (KEK, Tsukuba) et al.
Promising results obtained with crystal targets for positron production led to the elaboration of a hybrid source made of an axially oriented tungsten crystal, as a radiator, and an amorphous tungsten converter. If the converter is granular, made of small spheres, the heat dissipation is greatly enhanced and the thermal shocks reduced, allowing the consideration of such device for the future linear colliders. [...]
2015 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 355 (2015) 60-64
Elsevier Open Access article: PDF;
In : 6th International Conference on Charged and Neutral Particles Channeling Phenomena, Capri, Italy, 5 - 10 Oct 2014, pp.60-64
|
|
email alert
or subscribe to the 
RSS feed.