Optimization of a traveling wave superconducting rf cavity for upgrading the International Linear Collider

Shemelin, Valery; Yakovlev, V.P.

doi:10.1103/physrevaccelbeams.25.021001

Cited by 7 publications

(6 citation statements)

References 6 publications

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“…To achieve the highest possible accelerating gradient, the main emphasis of design optimization is to lower H pk /E acc as much as possible. For example, an optimized TW structure with a phase advance of π/2 has this parameter almost a factor of 1.5 lower than for the TESLA cavity [33]. If results for the best single-cell TESLA shape cavities prepared today (E acc = 49 MV/m, H pk = 2090 Oe) can be repeated in this TW structure, one can optimistically expect an accelerating gradient E acc > 70 MV/m.…”

Section: Traveling Wave Superconducting Radio Frequency Structuresmentioning

confidence: 95%

RF Technologies for Future Colliders

Belomestnykh

2022

Front. Phys.

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Particle colliders remain indispensable scientific instruments to discover and study new elementary particles and fundamental forces of nature. Whether the collider is a factory (used to improve precision of measuring properties of already discovered particles or to enable studies of rare decay channels), an energy frontier machine (aimed at discovering new particles and forces), a heavy ion collider (allowing studies of what the universe looked like in the early moments after its creation), or an electron-hadron collider (where electrons are used for probing heavy ions or protons to study the fundamental force binding all visible matter), the radio frequency technologies play a key role in enabling the machine to reach its goals. This article considers challenges presented to the radio frequency technologies by the next generation of particle colliders and reviews R&D approaches and directions to address these challenges.

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Section: Traveling Wave Superconducting Radio Frequency Structuresmentioning

confidence: 95%

RF Technologies for Future Colliders

Belomestnykh

2022

Front. Phys.

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“…Table 1 [37] shows one set of parameters for optimized cell shape, phase advance, and 50 mm aperture that yield H pk /E acc = 28.8 Oe/(MV/m) with E pk /E acc = 1.73. The geometrical parameters for the cell shape are defined in Figure 9.…”

Section: Nb-based Traveling Wave Srfmentioning

confidence: 99%

“…Thus, TW structures have less sensitivity to cavity detuning errors, making tuning easier, despite the larger number of cells. Studies [37] show that the cell shape can be fine-tuned to avoid multipacting, without increasing H pk more than 1%. Higher Order Mode (HOM) damping for TW structures is under study.…”

Section: Nb-based Traveling Wave Srfmentioning

confidence: 99%

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Higgs-Energy LEptoN (HELEN) Collider based on advanced superconducting radio frequency technology

Belomestnykh¹,

Bhat²,

Grassellino³

et al. 2022

Preprint

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This Snowmass 2021 contributed paper discusses a Higgs-Energy LEptoN (HELEN) e + e − linear collider based on advances superconducting radio frequency technology. The proposed collider offers cost and AC power savings, smaller footprint (relative to the ILC), and could be built at Fermilab with an Interaction Region within the site boundaries. After the initial physics run at 250 GeV, the collider could be upgraded either to higher luminosity or to higher (up to 500 GeV) energies. If the ILC could not be realized in Japan in a timely fashion, the HELEN collider would be a viable option to build a Higgs factory in the U.S.

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“…Travelling wave SRF (TW) structures offer further advantages over standing wave: substantially lower peak magnetic (H pk /E acc ) and lower peak electric field (E pk /E acc ) ratios, two times higher R/Q. The TW shape optimization [53] indicates that an accelerating gradient as high as 70 MV/m might be achievable. The 38% increase of the G • R/Q parameter reduces the cryogenic dynamic heat load at high gradients.…”

Section: Advanced Srf Cavity Shapesmentioning

confidence: 99%

Key directions for research and development of superconducting radio frequency cavities

Belomestnykh,

Posen,

Bafia

et al. 2022

Preprint

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Radio frequency superconductivity is a cornerstone technology for many future HEP particle accelerators and experiments from colliders to proton drivers for neutrino facilities to searches for dark matter. While the performance of superconducting RF (SRF) cavities has improved significantly over the last decades, and the SRF technology has enabled new applications, the proposed HEP facilities and experiments pose new challenges. To address these challenges, the field continues to generate new ideas and there seems to be a vast room for improvements. In this paper we discuss the key research directions that are aligned with and address the future HEP needs.

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Optimization of a traveling wave superconducting rf cavity for upgrading the International Linear Collider

Cited by 7 publications

References 6 publications

RF Technologies for Future Colliders

RF Technologies for Future Colliders

Higgs-Energy LEptoN (HELEN) Collider based on advanced superconducting radio frequency technology

Key directions for research and development of superconducting radio frequency cavities

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