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1.
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New Quantity Describing the Pulse Shape Dependence of the High Gradient Limit in Single Cell Standing-Wave Accelerating Structures
/ Shi, Jiaru (Tsinghua U., Beijing ; Tsinghua U., Beijing, KLPRI) ; Chen, Huaibi (Tsinghua U., Beijing ; Tsinghua U., Beijing, KLPRI) ; Dolgashev, Valery (SLAC) ; Grudiev, Alexej (CERN) ; Higashi, Yasuo (KEK, Tsukuba) ; Spataro, Bruno (Frascati) ; Wu, Xiaowei (Tsinghua U., Beijing ; Tsinghua U., Beijing, KLPRI) ; Wuensch, Walter (CERN)
A new quantity has been developed to study the relationship among the breakdown rate, the pulse width and the gradient. Difference pulse shapes can be treated by introducing a Green's function. [...]
CERN-ACC-2016-130.-
2016 - 3 p.
- Published in : 10.18429/JACoW-IPAC2016-THPOR042
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOR042
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2.
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Comparison of High Gradient Performance in Varying Cavity Geometries
/ Higo, Toshiyasu (KEK, Tsukuba) ; Abe, Tetsuo (KEK, Tsukuba) ; Arakida, Yoshio (KEK, Tsukuba) ; Higashi, Yasuo (Okinawa Inst. Sci. Tech.) ; Matsumoto, Shuji (KEK, Tsukuba) ; Shidara, Tetsuo (KEK, Tsukuba) ; Takatomi, Toshikazu (KEK, Tsukuba) ; Yamanaka, Masashi (KEK, Tsukuba) ; Grudiev, Alexej (CERN) ; Riddone, Germana (CERN) et al.
Four types of CLIC prototype TW accelerator structures were high-gradient tested at Nextef, KEK, up to 100 MV/m level and the fifth is under test now. The ramping speed of each processing and the resultant breakdown rate were compared among them. [...]
2013 - 3 p.
- Published in : (2013) , pp. WEPFI018
Fulltext: PDF; External link: JACoW server
In : 4th International Particle Accelerator Conference, Shanghai, China, 12 - 17 May 2013, pp.WEPFI018
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3.
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Results from the CLIC X-BAND structure test program at the NLCTA
/ Adolphsen, Chris (SLAC) ; Bowden, Gordon (SLAC) ; Dolgashev, Valery (SLAC) ; Laurent, Lisa (SLAC) ; Tantawi, Sami (SLAC) ; Wang, Faya (SLAC) ; Wang, W Juwen (SLAC) ; Doebert, Steffen (CERN) ; Grudiev, Alexej (CERN) ; Riddone, Germana (CERN) et al.
As part of a SLAC-CERN-KEK collaboration on high gradient X-band structure research, several prototype structures for the CLIC linear collider study have been tested using two of the high power (300 MW) X-band rf stations in the NLCTA facility at SLAC. These structures differ in terms of their manufacturing (brazed disks and clamped quadrants), gradient profile (amount by which the gradient increases along the structure which optimizes efficiency and maximizes sustainable gradient) and HOM damping (use of slots or waveguides to rapidly dissipate dipole mode energy). [...]
CERN-OPEN-2013-033; SLAC-PUB-13697; CLIC-Note-799.-
Geneva : CERN, 2010 - 4 p.
Preprint: PDF; External link: Published version from PAC09
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE5PFP018
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4.
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Breakdown characteristics in DC spark experiments of copper focusing on purity and hardness
/ Yokoyama, Kazue (KEK, Tsukuba) ; Fukuda, Shigeki (KEK, Tsukuba) ; Higashi, Yasuo (KEK, Tsukuba) ; Higo, Toshi (KEK, Tsukuba) ; Matsumoto, Shuji (KEK, Tsukuba) ; Santiago-Kern, Ana Rocia (CERN) ; Pasquino, Chiara (CERN) ; Calatroni, Sergio (CERN) ; Wuensch, Walter (CERN)
The breakdown characteristics related to the differences in purity and hardness were investigated for several types of copper using a DC spark test system. Three types of oxygen-free copper (OFC) materials, usual class 1 OFC 7-nine large-grain copper and 6-nine hot-isotropic-pressed (HIP) copper with/without diamond finish, were tested with the DC spark test system. [...]
CERN-OPEN-2011-028; CLIC-Note-868.-
Geneva : CERN, 2010 - 4 p.
Preprint: PDF; Published version from LINAC10: PDF;
In : 25th Linear Accelerator Conference, Tsukuba, Japan, 12 - 17 Sep 2010, pp.MOP075
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5.
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Advances in X-band TW Accelerator Structures Operating in the 100 MV/m Regime
/ Higo, Toshiyasu (KEK, Tsukuba) ; Higashi, Yasuo (KEK, Tsukuba) ; Matsumoto, Shuji (KEK, Tsukuba) ; Yokoyama, Kazue (KEK, Tsukuba) ; Adolphsen, Chris (SLAC) ; Dolgashev, Valery (SLAC) ; Jensen, Aaron (SLAC) ; Laurent, Lisa (SLAC) ; Tantawi, Sami (SLAC) ; Wang, Faya (SLAC) et al.
A CERN-SLAC-KEK collaboration on high gradient X-band accelerator structure development for CLIC has been ongoing for three years. The major outcome has been the demonstration of stable 100 MV/m gradient operation of a number of CLIC prototype structures [...]
2010
External link: Published version from JACoW
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.THPEA013
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6.
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Development of Pulsed Laser Super-cavity for Compact High Flux X-ray Sources
/ Sakaue, Kazuyuki (RISE, Tokyo) ; Araki, Sakae (KEK, Ibaraki) ; Fukuda, Masafumi (NIRS, Chiba-shi) ; Higashi, Yasuo (KEK, Ibaraki) ; Honda, Yosuke (KEK, Ibaraki) ; Sakai, Hiroshi (ISSP/SRL, Chiba) ; Sasao, Noboru (Kyoto University, Kyoto) ; Takano, Mikio (NIRS, Chiba-shi) ; Taniguchi, Takashi (KEK, Ibaraki) ; Urakawa, Junji (KEK, Ibaraki) et al.
2006 - 3 p.
External link: Published version from JACoW
In : 10th European Particle Accelerator Conference, Edinburgh, UK, 26 - 30 Jun 2006, pp.3155
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7.
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Series Test of High-gradient Single-cell Superconducting Cavity for the Establishment of KEK Recipe
/ Saeki, Takayuki (KEK, Ibaraki) ; Furuta, Fumio (KEK, Ibaraki) ; Ge, Ming Qi (IHEP Beijing, Beijing) ; Higashi, Yasuo (KEK, Ibaraki) ; Higo, Toshiyasu (KEK, Ibaraki) ; Kazakov, Sergey (KEK, Ibaraki) ; Kim, Hyoung-Suk (Kyungpook National University, Daegu) ; Matsumoto, Hiroshi (KEK, Ibaraki) ; Morozumi, Yuichi (KEK, Ibaraki) ; Orr, Robert Steell (University of Toronto, Toronto, Ontario) et al.
2006 - 3 p.
External link: Published version from JACoW
In : 10th European Particle Accelerator Conference, Edinburgh, UK, 26 - 30 Jun 2006, pp.756
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8.
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Experimental Comparison at KEK of High Gradient Performance of Different Single Cell Superconducting Cavity Designs
/ Furuta, Fumio (KEK, Ibaraki) ; Higashi, Yasuo (KEK, Ibaraki) ; Higo, Toshiyasu (KEK, Ibaraki) ; Inoue, Youichi (KEK, Ibaraki) ; Kazakov, Sergey (KEK, Ibaraki) ; Kobayashi, Yoshiharu (KEK, Ibaraki) ; Matsumoto, Hiroshi (KEK, Ibaraki) ; Morozumi, Yuichi (KEK, Ibaraki) ; Orr, Robert Steell (KEK, Ibaraki) ; Saeki, Takayuki (KEK, Ibaraki) et al.
2006 - 3 p.
External link: Published version from JACoW
In : 10th European Particle Accelerator Conference, Edinburgh, UK, 26 - 30 Jun 2006, pp.750
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9.
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Cryomodule Development for Superconducting RF Test Facility (STF) at KEK
/ Tsuchiya, Kiyosumi (KEK, Ibaraki) ; Hayano, Hitoshi (KEK, Ibaraki) ; Higashi, Yasuo (KEK, Ibaraki) ; Hisamatsu, Hiromi (KEK, Ibaraki) ; Masuzawa, Mika (KEK, Ibaraki) ; Matsumoto, Hiroshi (KEK, Ibaraki) ; Mitsuda, Chikaori (KEK, Ibaraki) ; Noguchi, Shuichi (KEK, Ibaraki) ; Ohuchi, Norihito (KEK, Ibaraki) ; Okamura, Takahiro (KEK, Ibaraki) et al.
2006 - 3 p.
External link: Published version from JACoW
In : 10th European Particle Accelerator Conference, Edinburgh, UK, 26 - 30 Jun 2006, pp.505
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10.
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ILC Reference Design Report Volume 3 - Accelerator
/ Phinney, Nan (ed.) (SLAC) ; Toge, Nobukazu (ed.) (KEK, Tsukuba) ; Walker, Nicholas J. (ed.) (DESY) ; Aarons, Gerald (SLAC) ; Abe, Toshinori (Tokyo U.) ; Abernathy, Jason (Victoria U.) ; Ablikim, Medina (Beijing, Inst. High Energy Phys.) ; Abramowicz, Halina (Tel Aviv U.) ; Adey, David (Birmingham U.) ; Adloff, Catherine (Annecy, LAPP) et al.
The International Linear Collider (ILC) is a 200-500 GeV center-of-mass high-luminosity linear electron-positron collider, based on 1.3 GHz superconducting radio-frequency (SCRF) accelerating cavities. [...]
arXiv:0712.2361 ; FERMILAB-PUB-07-833-AD.
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2007 - 339.
Fermilab Library Server - Full text - Fulltext
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