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arXiv 1502.02060physics.acc-ph
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高梯度LINAC超导行波腔的研究

Studies of the superconducting traveling wave cavity for high gradient LINAC

Pavel Avrakhov, Roman Kostin, Alexei Kanareykin, Nikolay Solyak, Vyacheslav P. Yakovlev

摘要:

使用每个单元具有小相位提前的行波(TW)加速结构而不是驻波可以提供超导直线加速器中加速梯度的显著增加。在相同的表面电场和磁场条件下,TW段的加速梯度比TESLA形驻波腔的加速梯度大1.2-1.4。最近的L波段单细胞腔与波导反馈的测试表明,在一个单一的细胞ILC型腔从同一制造商的梯度相媲美的加速梯度。本文介绍了下一阶段的3单元TW谐振环的发展,将在行波制度进行测试。主要的模拟结果的微音和洛伦兹力失谐(LFD)也被认为是。

英文摘要:

Use of a traveling wave (TW) accelerating structure with a small phase advance per cell instead of standing wave may provide a significant increase of accelerating gradient in a superconducting linear accelerator. The TW section achieves an accelerating gradient 1.2-1.4 larger than TESLA-shaped standing wave cavities for the same surface electric and magnetic fields. Recent tests of an L-band single-cell cavity with a waveguide feedback demonstrated an accelerating gradient comparable to the gradient in a single-cell ILC-type cavity from the same manufacturer. This article presents the next stage of the 3- cell TW resonance ring development which will be tested in the traveling wave regime. The main simulation results of the microphonics and Lorentz Force Detuning (LFD) are also considered.

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