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Applying Superconducting Magnet Technology for High-efficiency Klystrons in Particle Accelerator RF Systems
/ Yamamoto, Akira (KEK, Tsukuba) ; Michizono, Shinichiro (KEK, Tsukuba) ; Wuensch, Walter (CERN) ; Syratchev, Igor (CERN) ; Mcmonagle, Gerard (CERN) ; Catalan Lasheras, Nuria (CERN) ; Calatroni, Sergio (CERN) ; Stapnes, Steinar (CERN) ; Watanabe, Hiroyuki (Hitachi, Tokyo) ; Tanaka, Hideki (Hitachi, Tokyo) et al.
An M$_{g}$B$_{2}$ superconducting solenoid magnet has been developed for electron beam focusing in X-band (12 GHz) klystrons for particle accelerator RF systems, to provide a central field of 0.8 T at 57 A and at ≥ 20 K. It has successfully realized significant AC-plug power saving in one order of magnitude compared with that for a conventional Cu solenoid magnet. [...]
CERN-ACC-2020-0020; CLIC-Note-1159.-
Geneva : CERN, 2020 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 30 (2020) 4101304
Fulltext: PDF;
In : 26th International Conference on Magnet Technology (MT-26), Vancouver, Canada, 22 - 27 Sep 2019, pp.4101304
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Development of Prototype MgB$_{2}$ Superconducting Solenoid Magnet for High-efficiency Klystron Applications
/ Watanabe, H (Hitachi, Hitachi) ; Koga, T (Hitachi, Hitachi) ; Tanaka, H (Hitachi, Hitachi) ; Wakuda, T (Hitachi, Hitachi) ; Yamamoto, Akira (KEK, Tsukuba ; CERN) ; Michizono, S (KEK, Tsukuba) ; Syratchev, Igor (CERN) ; Mcmonagle, Gerard (CERN) ; Catalan Lasheras, Nuria (CERN) ; Calatroni, Sergio (CERN)
A wind-and-react MgB 2 solenoid magnet for klystrons has been developed. While the current normal-conducting (Cu) magnet consumes 20 kW per magnet, this MgB$_2$ magnet consumes less than 3 kW in refrigerator power. [...]
CERN-ACC-2020-0022; CLIC-Note-1161.-
Geneva : CERN, 2020 - 7 p.
- Published in : IEEE Trans.Appl.Supercond. 30 (2020) 4601206
Fulltext: PDF;
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Performance of MgB$_{2}$ Superconductor Developed for High-Efficiency Klystron Applications
/ Tanaka, Hideki (Hitachi, Hitachi) ; Suzuki, Takaaki (Hitachi, Hitachi) ; Kodama, Motomune (Hitachi, Hitachi) ; Koga, Tomoyuki (Hitachi, Hitachi) ; Watanabe, Hiroyuki (Hitachi, Hitachi) ; Yamamoto, Akira (KEK, Tsukuba ; CERN) ; Shinichiro, Michizono (KEK, Tsukuba)
An 8-km long MgB$_{2}$ wire for a prototype klystron magnet was made and evaluated. The wire was made by a typical in situ method; it has 10 filaments and 0.67 mm in outer diameter. [...]
CERN-ACC-2020-0021; CLIC-Note-1160.-
Geneva : CERN, 2020 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 30 (2020) 6200105
Fulltext: PDF;
In : 26th International Conference on Magnet Technology (MT-26), Vancouver, Canada, 22 - 27 Sep 2019, pp.6200105
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First Operation of a Klystron Fitted with a Superconducting MgB₂ Solenoid
/ Catalán Lasheras, Nuria (CERN) ; Baig, Anisullah (Cockcroft Inst. Accel. Sci. Tech.) ; Boronat, Marça (CERN) ; Castilla, Alejandro (Cockcroft Inst. Accel. Sci. Tech.) ; Kimura, Takuji (CPI, Palo Alto) ; Kolda, Peter (CPI, Palo Alto) ; McMonagle, Gerard (CERN) ; Michizono, Shinichiro (KEK, Tsukuba) ; Syratchev, Igor (CERN) ; Yamamoto, Akira (KEK, Tsukuba)
As part of the effort to reduce the energy consumption of large research facilities using accelerators, high efficiency klystrons are being developed by CERN. However, a large fraction of the wall-plug power required to operate these klystrons is used in the focusing magnetic elements around the klystron in the form of normal conducting solenoids. [...]
2022 - 3 p.
- Published in : JACoW IPAC 2022 (2022) 3138-3140
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.3138-3140
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Design, fabrication and RF measurements of the storage and correction cavity prototypes of the RF pulse compression system for the klystron-based CLIC main linac
/ Wang, Ping ; Grudiev, Alexej (CERN) ; Riffaud, Benoit (CERN) ; Berthome, Emmanuel ; Motschmann, Fritz ; Syratchev, Igor (CERN) ; Scibor, Karol (CERN) ; Giordanino, Laurene ; Catalan Lasheras, Nuria (CERN) ; Morales Sanchez, Pedro (CERN)
An RF pulse compression system based on double-height waveguides was studied for the Klystron-based CLIC main linac. [...]
CERN-ACC-2024-0003 ; CLIC-Note-1198.
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2024 - 17.
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Design of the RF waveguide network for the klystron-based CLIC main linac RF Module
/ Wang, Ping (CERN) ; Capstick, Matthew John ; Catalan Lasheras, Nuria (CERN) ; Doebert, Steffen (CERN) ; Grudiev, Alexej (CERN) ; Rossi, Carlo (CERN) ; Morales Sanchez, Pedro (CERN) ; Syratchev, Igor (CERN) ; Wu, Xiaowei
The klystron-based Compact Linear Collider (CLIC) was initially proposed with a low center-of-mass energy of 380 GeV, primarily due to potential cost-effectiveness. [...]
CERN-ACC-2024-0001 ; CLIC-Note-1196.
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2024 - 24.
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High Power X-Band Generation Using Multiple Klystrons and Pulse Compression
/ Woolley, Benjamin (CERN) ; Argyropoulos, Theodoros (CERN) ; Catalán Lasheras, Nuria (CERN) ; Esperante Pereira, Daniel (Valencia U., IFIC) ; McMonagle, Gerard (CERN) ; Rey, Stephane (CERN) ; Syratchev, Igor (CERN) ; Tagg, Joseph (Natl. Instruments, Baden) ; Volpi, Matteo (Melbourne U.) ; Wuensch, Walter (CERN)
CERN has constructed and is operating a new X-band test stand containing two pairs of 12 GHz, 6 MW klystrons. By power combination through hybrid couplers and the use of pulse compressors, up to 45 MW of peak power can be sent to any of 4 test slots at pulse repetition rates up to 400 Hz. [...]
CERN-ACC-2017-260; CLIC-Note-1133.-
2017 - 3 p.
- Published in : 10.18429/JACoW-IPAC2017-THPIK095
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.THPIK095
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High power testing of a prototype clic structure: Td26cc r05 n3
/ Lucas, Thomas Geoffrey (University of Melbourne (AU)) ; Volpi, Matteo (University of Melbourne (AU)) ; Giansiracusa, Paul Joseph (University of Melbourne (AU)) ; Rassool, Roger Paul (Australian Synchrotron (AU)) ; Argyropoulos, Theodoros (CERN) ; Bursali, Hikmet (CERN) ; Catalan-Lasheras, Nuria (CERN) ; Grudiev, Alexej (CERN) ; Mcmonagle, Gerard (CERN) ; Syrachev, Igor (CERN) et al.
Testing of high gradient accelerating structure prototypes for the Compact Linear Collider is ongoing at CERN. [...]
CERN-ACC-2018-0030 ; CLIC-Note-1080.
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2018 - 9.
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