Fabrication, tuning, and high-gradient testing of an X-band traveling-wave accelerating structure for VIGAS

Lin, Xiancai; Zha, Hao; Shi, Jiaru; Gao, Qiang; Liu, Jiayang; Zhou, Lizhu; Gao, Jian; Chen, Huaibi; Tang, Chuanxiang

doi:10.1007/s41365-022-01086-y

Cited by 10 publications

(2 citation statements)

References 23 publications

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“…Traditional standing wave or traveling wave structures do not require wakefield damping due to low beam current and a less stringent beam quality requirement [6,7,8,9,10]. However, in the case of CLIC, wakefield damping becomes a fundamental necessity [11,12].…”

Section: Introductionmentioning

confidence: 99%

Design of the RF waveguide network for the klystron-based CLIC main linac RF module

Wang,

Capstick,

Lasheras

et al. 2024

Nuclear Instruments and Methods in Physics Research Section A:

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Section: Introductionmentioning

confidence: 99%

Design of the RF waveguide network for the klystron-based CLIC main linac RF module

Wang,

Capstick,

Lasheras

et al. 2024

Nuclear Instruments and Methods in Physics Research Section A:

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“…To date, over twenty prototype X-band (12 GHz) accelerating structures have reached unloaded accelerating gradients of 100 MV/m during testing [2][3][4][5] and recently, high-gradient X-band technology has also found use in other applications including free electron lasers (FELs) [6,7], radiation therapy [8,9], and inverse Compton scattering (ICS) sources [10]. Typically, individual precision machined disks are stacked and diffusion bonded to form the multi-cell accelerating sections on the CLIC structures [11].…”

mentioning

confidence: 99%

High-Power Test of Two Prototype X-Band Accelerating Structures Based on SwissFEL Fabrication Technology

Millar

Wuensch

Lasheras

et al. 2023

IEEE Trans. Nucl. Sci.

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This paper presents the design, construction, and high-power test of two X-band radio-frequency (RF) accelerating structures built as part of a collaboration between CERN and the Paul Scherrer Institute (PSI) for the Compact Linear Collider (CLIC) study. The structures are a modified "tuning-free" variant of an existing CERN design and were assembled using Swiss Free Electron Laser (SwissFEL) production methods. The purpose of the study is twofold; the first objective is to validate the RF properties and high-power performance of the tuning-free, vacuum brazed PSI technology. The second objective is to study the structures' high-gradient behaviour to provide insight into the breakdown and conditioning phenomena as they apply to high-field devices in general. Low-power RF measurements showed that the structure field profiles were close to the design values, and both structures were conditioned to accelerating gradients in excess of 100 MV/m in CERN's high-gradient test facility. Measurements performed during the second structure test suggest that the BDR scales strongly with the accelerating gradient, with the best fit being a power law relation with an exponent of 31.14. In both cases, the test results indicate that stable, high-gradient operation is possible with tuning-free, vacuum brazed structures of this kind.

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Design, fabrication, and testing of low-group-velocity S-band traveling-wave accelerating structure

et al. 2022

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Fabrication, tuning, and high-gradient testing of an X-band traveling-wave accelerating structure for VIGAS

Cited by 10 publications

References 23 publications

Design of the RF waveguide network for the klystron-based CLIC main linac RF module

Design of the RF waveguide network for the klystron-based CLIC main linac RF module

High-Power Test of Two Prototype X-Band Accelerating Structures Based on SwissFEL Fabrication Technology

Design, fabrication, and testing of low-group-velocity S-band traveling-wave accelerating structure

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