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1.
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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
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2.
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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
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3.
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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
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4.
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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
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5.
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The First Beam Recirculation and Beam Tuning in the Compact ERL at KEK
/ Sakanaka, Shogo ; Adachi, Masahiro ; Adachi, Shin-ichi ; Akemoto, Mitsuo ; Arakawa, Dai ; Asaoka, Seiji ; Enami, Kazuhiro ; Endo, Kuninori ; Fukuda, Shigeki ; Furuya, Takaaki et al.
Superconducting(SC)-linac-based light sources, which can produce ultra-brilliant photon beams in CW operation, are attracting worldwide attention. In KEK, we have been conducting R&D; efforts towards the energy-recovery-linac(ERL)-based light source* since 2006. [...]
CERN-ACC-2014-380.-
2014 - 4 p.
- Published in : (2014) , pp. TUPP075
Fulltext: tupp075 - PDF; tupp075_2 - PDF; External link: JACoW server
In : 27th Linear Accelerator Conference, Geneva, Switzerland, 31 Aug - 5 Sep 2014, pp.TUPP075
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6.
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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
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7.
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The First Measurement of Low-loss 9-cell Cavity in a Cryomodule at STF
/ Saeki, T (KEK, Tsukuba) ; Akemoto, M (KEK, Tsukuba) ; Fukuda, S (KEK, Tsukuba) ; Furuta, F (KEK, Tsukuba) ; Hara, K (KEK, Tsukuba) ; Higashi, Y (KEK, Tsukuba) ; Higo, T (KEK, Tsukuba) ; Hosoyama, K (KEK, Tsukuba) ; Inoue, H (KEK, Tsukuba) ; Kabe, A (KEK, Tsukuba) et al.
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.MOPP029
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8.
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Performance of KEKB with crab cavities
/ Funakoshi, Y (KEK, Tsukuba) ; Abe, T (KEK, Tsukuba) ; Akai, K (KEK, Tsukuba) ; Akemoto, M (KEK, Tsukuba) ; Akiyama, A (KEK, Tsukuba) ; Arinaga, M (KEK, Tsukuba) ; Ebihara, K (KEK, Tsukuba) ; Egawa, K (KEK, Tsukuba) ; Enomoto, A (KEK, Tsukuba) ; Flanagan, J (KEK, Tsukuba) et al.
2008 - 5 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.WEXG01
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9.
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Progress in R and D Efforts on the Energy Recovery Linac in Japan
/ Sakanaka, S (KEK, Tsukuba) ; Agoh, T A (KEK, Tsukuba) ; Enomoto, A (KEK, Tsukuba) ; Fukuda, S (KEK, Tsukuba) ; Furukawa, Kazuro (KEK, Tsukuba) ; Furuya, T (KEK, Tsukuba) ; Haga, K (KEK, Tsukuba) ; Hajima, R (JAEA, Ibaraki) ; Hanaki, H (Japan Synch. Radiation Res. Inst.) ; Harada, K (KEK, Tsukuba) et al.
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.MOPC061
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10.
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Cavity Diagnostic System for the Vertical Test of the STF Baseline 9-cell Cavity at KEK
/ Yamamoto, Y (KEK, Tsukuba) ; Hayano, H (KEK, Tsukuba) ; Kako, E (KEK, Tsukuba) ; Moon, S I (Pohang Accelerator Lab.) ; Noguchi, S (KEK, Tsukuba) ; Sakai, H (Tokyo U., ISSP) ; Satoh, M (KEK, Tsukuba) ; Shinoe, K (Tokyo U., ISSP) ; Shishido, T (KEK, Tsukuba) ; Umemori, K (KEK, Tsukuba) et al.
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.MOPP044
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