Fermilab EP Facility Improvement

Furuta, Fumio; Bice, D.; Crawford, Anthony C.; Ring, Tim

doi:10.18429/jacow-srf2019-tup022

Cited by 3 publications

(2 citation statements)

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“…Some of these developments could be implemented in ILC cryomodules to push performance by 10%, either resulting in fewer cryomodules required to reach the design center of mass energy, or else as a safety margin on top of the nominal energy and beginning towards first energy upgrades. The relevant new technologies include cold electropolishing [169] and the two step bake [117].…”

Section: Superconducting Linacmentioning

confidence: 99%

The International Linear Collider (Report to Snowmass 2021)

Aryshev¹,

Behnke²,

Berggren³

et al. 2022

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The International Linear Collider (ILC) is on the table now as a new global energyfrontier accelerator laboratory taking data in the 2030's. The ILC addresses key questions for our current understanding of particle physics. It is based on a proven accelerator technology. Its experiments will challenge the Standard Model of particle physics and will provide a new window to look beyond it. This document brings the story of the ILC up to date, emphasizing its strong physics motivation, its readiness for construction, and the opportunity it presents to the US and the global particle physics community.

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Section: Superconducting Linacmentioning

confidence: 99%

The International Linear Collider (Report to Snowmass 2021)

Aryshev¹,

Behnke²,

Berggren³

et al. 2022

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“…The external water spray system allows one to control the cavity surface temperature below 15 • C. The acid bath is also actively cooled during the process. This system is similar to the one at Fermilab which is utilized to perform cold EP in single-cell 1.3 GHz cavities 33 .…”

Section: N-doping Optimization For Multicell Cavitiesmentioning

confidence: 99%

Q-factor optimization for high-beta 650 MHz cavities for PIP-II

Martinello,

Bice,

Boffo

et al. 2021

Preprint

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High Q-factors are of utmost importance to minimize losses of superconducting radio-frequency cavities deployed in continuous wave particle accelerators. This study elucidates the surface treatment that can maximize the Q-factors in high-beta 650 MHz elliptical niobium cavities. State-of-the-art surface treatments are applied in many single-cell cavities, and surface resistance studies are performed to understand the microwave dissipation at this unexplored frequency. The nitrogen doping treatment is confirmed to be necessary to maximize the Q-factors at medium RF fields. We applied this treatment in 5-cell high-beta 650 MHz cavities and demonstrated that extremely high Q-factors were obtained at medium RF fields with this treatment. We also demonstrated that adding a cold electropolishing step after N-doping is crucial to push the quench field of multicell cavities to higher gradients.

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

Shemelin

Yakovlev²

2022

Phys. Rev. Accel. Beams

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Fermilab EP Facility Improvement

Cited by 3 publications

References 0 publications

The International Linear Collider (Report to Snowmass 2021)

The International Linear Collider (Report to Snowmass 2021)

Q-factor optimization for high-beta 650 MHz cavities for PIP-II

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

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