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1.
KlyC. The 1D/1.5D large signal computer code for the klystron simulations. User manual. / Cai, Jinchi (CERN) ; Syratchev, Igor (CERN)
Almost all the accurate and efficient 2D large-signal codes for the klystron simulations are proprietary and are not freely available to the wide klystron community. [...]
CERN-ACC-2018-0050 ; CLIC-Note-1137.
- 2018 - 18.
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KlyC. The 1D/1.5D large signal computer code for the Klystron simulations. User Manual. Version 6. (included CGUN for the 2D electron beam optics simulation). / Cai, Jinchi (Lancaster University (GB)) ; Syratchev, Igor (CERN) ; Burt, Graeme Campbell (Lancaster University (GB))
Almost all accurate and efficient 2D large-signal codes for klystron simulations are proprietary and are not freely available to the wider klystron community [...]
CERN-ACC-2022-0008 ; CLIC-Note-1177.
- 2022 - 31.
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KlyC: 1.5-D large-signal simulation code for klystrons / Cai, Jinchi (CERN) ; Syratchev, Igor (CERN)
The High Efficiency International Klystron Activity (HEIKA) was initiated at CERN in 2014 to evaluate and develop new klystron bunching technologies for high-efficiency klystrons in application to the large-scale scientific projects such as the Compact Linear Collider (CLIC) and the Future Circular Collider (FCC). The success of such development strongly depends on the availability of the specialized klystron computer codes. [...]
2019 - 8 p. - Published in : IEEE Trans. Plasma Sci. 47 (2019) 1734-1741
4.
The design update of the X-band RF pulse compressor with Correction Cavities for the CLIC 380 GeV klystron based accelerator / Cai, Jinchi (Lancaster University (GB)) ; Syratchev, Igor (CERN)
The X-band RF Pulse Compressor (PC) with Correction Cavities was selected as a base line option for the CLIC 380 GeV klystron based accelerator. [...]
CERN-ACC-2020-0031 ; CLIC-Note-1166.
- 2020 - 6.
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DC Beam Stability issues in the first commercial prototype of a High Efficiency 8MW X-Band Klystron / Syratchev, Igor (CERN) ; Un Nisa, Zaib (CERN) ; Cai, Jinchi (Lancaster University (GB)) ; Burt, Graeme Campbell (Lancaster University (GB)) ; Anno, Toshiro (Canon Electron Tubes & Devices Co., Ltd (CETD))
The first commercial prototype of the new High Efficiency (HE) 8MW klystron was built and tested at CETD in the fall of 2021. [...]
CERN-ACC-2022-0007 ; CLIC-Note-1176.
- 2022 - 13.
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KlyC expansion: Traveling wave module in Klystron simulation code / Cai, Jinchi (UESTC, Chengdu) ; Li, Wei (UESTC, Chengdu) ; Su, Zixuan (UESTC, Chengdu) ; Xu, Jin (UESTC, Chengdu) ; Yue, Linna (UESTC, Chengdu) ; Yin, Hairong (UESTC, Chengdu) ; Yin, Pengcheng (UESTC, Chengdu) ; Zhao, Guoqing (UESTC, Chengdu) ; Wang, Wenxiang (UESTC, Chengdu) ; Wei, Yanyu (UESTC, Chengdu) et al.
Since Klystron simulation code KlyC was released in 2017, it has been used for the design of series of high efficiency (HE) Klystron projects. Lots of new features such as coupling mode analysis, monotron diagnosis and complete small signal theory have been implemented into KlyC to facilitate sophisticated Klystron design. [...]
2023 - 2 p. - Published in : 10.1109/IVEC56627.2023.10157204
In : 24th IEEE International Vacuum Electronics Conference (IVEC 2023), Chengdu, China, 26 - 28 Apr 2023
7.
Accurate Modeling of Monotron Oscillations in Small- and Large-Signal Regimes / Cai, Jinchi (Lancaster U. (main)) ; Syratchev, Igor (CERN) ; Burt, Graeme (Lancaster U. (main))
In Klystron amplifiers, monotron oscillations may cause unacceptable beam instabilities. For facilitating fast and accurate analysis of such processes, rather than performing time-consuming particle-in-cell simulations, the theory of the monotron oscillations has been further developed for the small- and large-signal regimes and implemented into the klystron computer code KlyC. This development includes full considerations of the spacecharge effects, relativistic effects and can operate with arbitrary field distributions of the resonant mode. [...]
2020 - 7 p. - Published in : IEEE Trans. Electron Devices 67 (2020) 1797-1803
8.
Modeling of Coupled Cell Output Structures for the Klystrons / Cai, J C (CERN) ; Syratchev, I (CERN)
High-frequency, high-power klystrons proved to be significant for application in compact particle accelerators, high-resolution radars, and fast data communication systems. As most of the linear beam devices, the performance of the klystron deteriorates progressively with an increasing operating frequency due to the reduction of individual RF cavity impedances. [...]
2019 - 6 p. - Published in : IEEE Trans. Electron Devices 66 (2019) 4964-4969
9.
Modeling and Technical Design Study of Two-Stage Multibeam Klystron for CLIC / Cai, Jinchi (Lancaster U. (main)) ; Syratchev, Igor (CERN)
The RF power production efficiency is one of the major concerns in the 3-TeV Compact Linear Collider (CLIC) Drive Beam Accelerator, as it is responsible for almost 50% of the entire accelerator complex power consumption. The klystron technology with dc post acceleration of the prebunched beam was reconsidered recently, as an attempt to develop a technological solution for the high efficiency, high power L-band multibeam klystrons (MBKs). [...]
2020 - 7 p. - Published in : IEEE Trans. Electron Devices 67 (2020) 3362-3368
10.
Development of 36 GHz RF Systems for RF Linearisers / Castilla, Alejandro (CERN ; Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U.) ; Behtouei, Mostafa (Frascati) ; Burt, Graeme (Lancaster U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Cai, Jinchi (CERN ; Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U.) ; Cross, Adrian W (Strathclyde U.) ; Latina, Andrea (CERN) ; Liu, Xingguang (CERN) ; Nix, Laurence J R (Strathclyde U.) ; Spataro, Bruno (Frascati) ; Syratchev, Igor (CERN) et al.
As part of the deign studies, the CompactLight project plans to use an injector in the C-band. Which constitutes a particular complication for the harmonic system in charge of linearising the beam’s phase space, since it means its operation frequency could be higher than the standard X-band RF technologies. [...]
Geneva : JACoW, 2021 - 6 p. - Published in : JACoW IPAC '21 (2021) 4518-4523 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.4518-4523

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