|
1.
|
Publication
|
|
2.
|
High-gradient breakdown studies of an X -band Compact Linear Collider prototype structure
/ Wu, Xiaowei (Tsinghua U., Beijing ; Tsinghua U., Beijing, KLPRI) ; Shi, Jiaru (Tsinghua U., Beijing ; CERN ; Tsinghua U., Beijing, KLPRI) ; Chen, Huaibi (Tsinghua U., Beijing) ; Shao, Jiahang (Tsinghua U., Beijing ; Tsinghua U., Beijing, KLPRI) ; Abe, Tetsuo (KEK, Tsukuba) ; Higo, Toshiyasu (KEK, Tsukuba) ; Matsumoto, Shuji (KEK, Tsukuba) ; Wuensch, Walter (CERN)
A Compact Linear Collider prototype traveling-wave accelerator structure fabricated at Tsinghua University was recently high-gradient tested at the High Energy Accelerator Research Organization (KEK). This X-band structure showed good high-gradient performance of up to 100 MV/m and obtained a breakdown rate of $1.27×10^{−8}$ per pulse per meter at a pulse length of 250 ns. [...]
2017 - 11 p.
- Published in : Phys. Rev. Accel. Beams 20 (2017) 052001
Fulltext: PDF;
|
|
|
3.
|
ebook
|
|
4.
|
High Power Test of X-band Single Cell HOM-free Choke-mode Damped Accelerating Structure made by Tsinghua University
/ Wu, Xiaowei (Tsinghua U., Beijing, KLPRI ; Tsinghua U., Beijing, Dept. Eng. Phys.) ; Abe, Tetsuo (KEK, Tsukuba) ; Chen, Huaibi (Tsinghua U., Beijing, KLPRI ; Tsinghua U., Beijing, Dept. Eng. Phys.) ; Higo, Toshiyasu (KEK, Tsukuba) ; Shi, Jiaru (Tsinghua U., Beijing, KLPRI ; Tsinghua U., Beijing, Dept. Eng. Phys.) ; Wuensch, Walter (CERN) ; Zha, Hao (Tsinghua U., Beijing, KLPRI ; Tsinghua U., Beijing, Dept. Eng. Phys.)
As an alternative design for CLIC main accelerating structures, X-band choke-mode damped structures had been studied for several years. However, the performance of choke-mode cavity under high power is still in lack of research. [...]
CERN-ACC-2016-129; CLIC-Note-1105.-
2016 - 3 p.
- Published in : 10.18429/JACoW-IPAC2016-THPOR043
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOR043
|
|
|
5.
|
High Gradient Properties of a CLIC Prototype Accelerating Structure made by Tsinghua University
/ Wu, Xiaowei (Tsinghua U., Beijing ; Tsinghua U., Beijing, KLPRI) ; Chen, Huaibi (Tsinghua U., Beijing ; Tsinghua U., Beijing, KLPRI) ; Higo, Toshiyasu (KEK, Tsukuba) ; Matsumoto, Shuji (KEK, Tsukuba) ; Shi, Jiaru (Tsinghua U., Beijing ; Tsinghua U., Beijing, KLPRI) ; Wuensch, Walter (CERN)
A CLIC prototype structure, T24_THU_#1, was recently high-gradient tested at KEK X-band test stand, Nextef. The copper parts of this 24-cell TW structure were delivered from CERN, were bonded and brazed, bench-tested and tuned in Tsinghua University. [...]
CERN-ACC-2016-131; CLIC-Note-1104.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-THPOR041
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOR041
|
|
|
6.
|
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
|
|
|
7.
|
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
|
|
|
8.
|
Beam dynamics and wakefield suppression in interleaved damped and detuned structures for CLIC
/ D'Elia, A (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech. ; CERN) ; Higo, T (KEK, Tsukuba) ; Khan, V F (CERN) ; Jones, R M (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Latina, A (CERN) ; Nesmiyan, I (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Riddone, G (CERN)
Acceleration of multiple bunches of charged particles in the main linacs of the Compact Linear Collider (CLIC) with high accelerating fields provides two major challenges: firstly, to ensure the surface electromagnetic fields do not cause electrical breakdown and subsequent surface damage, and secondly, to ensure the beam-excited wakefields are sufficiently suppressed to avoid appreciable emittance dilution. In the baseline design for CLIC, heavy wakefield suppression is used (Q ~ 10) [1] and this ensures the beam quality is well-preserved [2]. [...]
2013
Published version from JACoW: PDF;
In : North American Particle Accelerator Conference, Pasadena, CA, USA, 29 Sep - 04 Oct 2013, pp.460-462
|
|
|
9.
|
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
|
|
|
10.
|
Enhanced coupling design of a detuned damped structure for CLIC
/ D'Elia, A. (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech. ; CERN) ; Jones, R.M. (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Grudiev, A. (CERN) ; Higo, T. (KEK, Tsukuba) ; Khan, V.F. (CERN) ; Wuensch, W. (CERN)
The key feature of the improved coupling design in the Damped Detuned Structure (DDS) is focused on the four manifolds. Rectangular geometry slots and rectangular manifolds are used. [...]
IPAC-2012-THPPC022; arXiv:1205.3590.-
2012 - 3 p.
- Published in : Conf. Proc.: C1205201 (2012) , pp. THPPC022
Fulltext: PDF; External link: Full-text at JACoW Server
In : 3rd International Particle Accelerator Conference, New Orleans, LA, USA, 20 - 25 May 2012, pp.3323
|
|