Medium-temperature furnace bake of Superconducting Radio-Frequency cavities at IHEP

He, Feisi; Pan, Weimin; Sha, Peng; Zhai, Jiyuan; Mi, Zhenghui; Dai, Xuwen; Jin, Song; Zhang, Zhanjun; Dong, Chao; Liu, Baiqi; Zhao, Hui; Ge, Rui; Zhao, J.; Mu, Zhihui; Du, Lei; Sun, Liangrui; Zhang, Liang; Yang, Conglai; Zheng, Xunhua

doi:10.48550/arxiv.2012.04817

Cited by 2 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, 300 • C furnace baking has the same effect for two different cavities, indicating good reproducibility. These results are in good agreement with those obtained for single-cell cavities that are furnace-baked in the temperature range of 250 to 400 • C at IHEP 27 . The high-temperature furnace-baked cavities baked at 600 • C and 800 • C did not reach high Q 0 , and the Q values were comparable to those of the standard treated cavity.…”

supporting

confidence: 87%

Influence of Furnace Baking on Q-E Behavior of Superconducting Accelerating Cavities

Ito

Araki

Takahashi

et al. 2021

Progress of Theoretical and Experimental Physics

View full text Add to dashboard Cite

The performance of superconducting radio-frequency (SRF) cavities depends on the niobium surface condition. Recently, various heat-treatment methods have been investigated to achieve unprecedented high quality factor (Q) and high accelerating field (E). We report the influence of a new baking process called furnace baking on the Q-E behavior of 1.3 GHz SRF cavities. Furnace baking is performed as the final step of the cavity surface treatment; the cavities are heated in a vacuum furnace for 3 h, followed by high-pressure rinsing and radio-frequency measurement. This method is simpler and potentially more reliable than previously reported heat-treatment methods, and it is therefore, easier to apply to the SRF cavities. We find that the quality factor is increased after furnace baking at temperatures ranging from 300 °C to 400 °C, while strong decreasing the quality factor at high accelerating field is observed after furnace baking at temperatures ranging from 600 °C to 800 °C. We find significant differences in the surface resistance for various processing temperatures.

show abstract

supporting

confidence: 87%

Influence of Furnace Baking on Q-E Behavior of Superconducting Accelerating Cavities

Ito

Araki

Takahashi

et al. 2021

Progress of Theoretical and Experimental Physics

View full text Add to dashboard Cite

show abstract

“…Surface analysis of similarly treated samples show a nitrogen peak at a few nm below the surface, suggesting that nitrogen is naturally present at the surface and has diffused into the Nb to give the N-doping effect. IHEP in Beĳing, China followed up on these encouraging results with similar exciting results on several 9-cell TESLA cavities [25]. After mid-𝑇 (300 • C) furnace bake, and HPR, all the 9-cell cavities demonstrate high 𝑄 in the range of 3.5-4.4 × 10 10 at the gradient between 16 and 24 MV/m, as shown in figure 4.…”

Section: Advances In Surface Preparation Of Standing Wave Srf Cavitiesmentioning

confidence: 57%

Superconducting radio frequency linear collider HELEN

Belomestnykh,

Bhat,

Grassellino

et al. 2023

J. Inst.

View full text Add to dashboard Cite

This article discusses a proposed Higgs-Energy LEptoN (HELEN) e + e - linear collider based on advanced traveling wave 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. 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.

show abstract

Medium-temperature furnace bake of Superconducting Radio-Frequency cavities at IHEP

Cited by 2 publications

References 5 publications

Influence of Furnace Baking on Q-E Behavior of Superconducting Accelerating Cavities

Influence of Furnace Baking on Q-E Behavior of Superconducting Accelerating Cavities

Superconducting radio frequency linear collider HELEN

Contact Info

Product

Resources

About