Healing gradient degradation in Nb3Sn SRF cavities using a recoating method

IF 5.3 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

APL Materials Pub Date : 2024-07-10 DOI:10.1063/5.0218739

Eric Viklund, David N. Seidman, Sam Posen, Brad M. Tennis, Grigory Eremeev

引用次数: 0

Abstract

Despite having advantageous superconducting properties, Nb3Sn superconducting radiofrequency (SRF) cavities still have practical challenges compared to Nb SRF cavities due to the brittle nature of Nb3Sn. Performance degradation can occur when an Nb3Sn SRF cavity experiences mechanical stresses, such as during handling and tuning of the cavity. In this study, we present a potential treatment for SRF cavities that have experienced stress-induced performance degradation that involves a recoating procedure. The degraded cavity is coated with a small amount of Sn using a single-step vapor-diffusion methodology. Using this approach, we can recover a significant portion of the lost performance of the Nb3Sn SRF cavity.

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使用重涂法修复 Nb3Sn SRF 型腔中的梯度退化

尽管铌(Nb3Sn)超导射频(SRF)空腔具有优越的超导特性，但由于铌(Nb3Sn)的脆性，与铌(Nb)SRF空腔相比，铌(Nb3Sn)SRF空腔仍然面临实际挑战。当 Nb3Sn SRF 腔体承受机械应力时，例如在腔体的处理和调谐过程中，可能会出现性能下降。在这项研究中，我们提出了一种处理因应力而导致性能下降的 SRF 腔体的潜在方法，其中包括重新涂层程序。使用单步蒸发扩散方法，在退化的空腔上涂覆少量 Sn。利用这种方法，我们可以恢复铌3硒SRF空腔性能损失的很大一部分。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

APL Materials NANOSCIENCE & NANOTECHNOLOGYMATERIALS SCIE-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

9.60

自引率

3.30%

发文量

199

审稿时长

2 months

期刊介绍： APL Materials features original, experimental research on significant topical issues within the field of materials science. In order to highlight research at the forefront of materials science, emphasis is given to the quality and timeliness of the work. The journal considers theory or calculation when the work is particularly timely and relevant to applications. In addition to regular articles, the journal also publishes Special Topics, which report on cutting-edge areas in materials science, such as Perovskite Solar Cells, 2D Materials, and Beyond Lithium Ion Batteries.