Pushing the Gradient Frontier in Superconducting RF

推动超导射频的梯度前沿

• 批准号: 0752663
• 负责人: Georg Hoffstaetter de Torquat
• 金额: $ 93.6万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-01 至 2011-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0752663&HistoricalAwards=false
• 关键词: Pushing; Gradient; Frontier; Superconducting; RF

Radio Frequency Superconductivity has become an enabling technology for a variety of accelerators necessary for frontier research in nuclear physics, materials science and high energy physics. In the US, many accelerator facilities are firmly based on superconducting rf (SRF) technology. As the gradient capability of SRF continues to improve, prospects for new applications grow increasingly attractive. This proposal seeks to continue generic R&D on improving superconducting cavity gradients. Gradients in niobium superconducting cavities have been steadily advancing over the last decade due to improvements in understanding the physics of cavity performance limitations and due to invention of appropriate cures to address these limitations. This proposal seeks to extend the record gradients to multi-cell structures of new shapes.The intellectual merit of this proposal will be to understand the causes of yield limitations in full-scale structures clearing the path to realizing 60 MV/m gradients. The broad impact of generic advances proposed here would be to benefit many of new facilities that will be based on SRF: Free Electron Lasers, Energy Recovery Linac based light sources, high intensity proton accelerators for neutrino beam lines or for accelerator transmutation of nuclear waste, rare isotope accelerators for nuclear astrophysics, the International Linear Collider, Muon accelerators for neutrino factories and ultimately a multi-TeV muon collider.

射频超导已成为核物理、材料科学和高能物理前沿研究所需的各种加速器的使能技术。 在美国，许多加速器设施都是基于超导射频（SRF）技术。 随着SRF梯度能力的不断提高，新的应用前景越来越有吸引力。 该提案旨在继续改善超导腔梯度的一般研发。& 在过去的十年中，由于对腔性能限制的物理学理解的改进以及由于解决这些限制的适当固化的发明，铌超导腔中的超导体已经稳步发展。 这一建议旨在将记录梯度扩展到新形状的多单元结构。这一建议的智力价值将是理解全尺寸结构中产量限制的原因，从而为实现60 MV/m梯度扫清道路。 这里提出的一般性进展的广泛影响将使许多基于战略成果框架的新设施受益：自由电子激光器，基于能量回收直线加速器的光源，用于中微子束线或用于核废料加速器嬗变的高强度质子加速器，用于核天体物理学的稀有同位素加速器，国际直线对撞机，中微子工厂的μ子加速器，最终是一个多TeV的μ子对撞机。