用 BPM 测量的费米实验室助推器四极模式光束幅射

arXiv - PHYS - Accelerator Physics Pub Date : 2024-06-21 DOI:arxiv-2406.15238

C. Y. TanFermi National Accelerator Laboratory, M. BalcewiczFermi National Accelerator Laboratory

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引用次数: 0

摘要

至少在 40 年前，就有人发表了通过从 4 板光束位置监测器（BPM）中提取四极模式信号来测量光束发射率的方法。遗憾的是，在实践中，这种方法信噪比较低，需要进行大量调整才能提取出发射率。本文介绍了一种经过改进的方法，即使用多个 BPM 并进行更好的数学分析。然后将 BPM 得出的发射率与离子剖面监测仪（IPM）测量的发射率进行比较。令人惊讶的是，BPM 测量的幅射表现非常好，比 IPM 测量的幅射更真实。

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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Fermilab Booster Beam Emittances from Quadrupole Modes Measured by BPMs

The measurement of beam emittances by extracting the quadrupole mode signal from a 4 plate beam position monitor (BPM) was published at least 40 years ago. Unfortunately, in practice, this method suffers from poor signal to noise ratio and requires a lot of tuning to extract out the emittances. In this paper, an improved method where multiple BPMs are used together with better mathematical analysis is described. The BPM derived emittances are then compared with those measured by the Ion Profile Monitor (IPM). Surprisingly, the BPM measured emittances behave very well and are more realistic than those measured by the IPM.

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arXiv - PHYS - Accelerator Physics

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