发表机构
Univ. of Hawaii at Manoa; Fermi National Accelerator Laboratory（夏威夷大学马诺阿分校; 费米国家加速器实验室）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出基于电磁矢量势的新型束流电流监测系统，用于费米实验室 Mu2e 实验的脉冲间强度监测，并探索毫米波波导以测量皮秒级束团子结构。
AI 中文摘要
我们报告了一种新型束流电流监测系统，该系统基于最初为未来对撞机探测器开发定时平面所做的工作。与基于壁电流或环形电感器的传感器不同，我们利用束流电流通过或靠近传输线（TL）时其电磁矢量势所感应的电场，该传输线以其主 TEM 或 TE10 模式场与电流对齐排列，从而直接耦合到 TL 模式。对于目前正在费米实验室输运环上调试的共振引出质子脉冲，我们采用了 TEM 平行板 TL 几何结构，因为要求包括在约 200 纳秒时间尺度上测量束团结构。我们展示了目前在费米实验室部署的模拟和实际传感器的设计与结果，这些传感器未来将用作 Mu2e 实验中脉冲间质子强度监测器。此外，受此项工作及先前工作的启发，我们研究了使用宽带毫米波双脊波导来测量纳秒束团子结构（低至几十皮秒级别）的方法，以供未来在长基线中微子设施（LBNF）中使用。
英文摘要
We report on a new beam current monitor system based on work originally done to develop timing planes for future collider detectors. In contrast to sensors based on wall currents or toroid inductance, we make use of electric field induced by the electromagnetic vector potential of the beam current as it passes near or through a transmission line (TL), arranged with its dominant TEM or TE10 fields aligned with the current, thus directly coupling to TL modes. For resonantly extracted proton pulses currently being commissioned at the Fermilab Delivery Ring, we utilized a TEM parallel-plate TL geometry, since the requirements included measuring the structure of the bunch over $\sim{}200~\rm{ns}$ time scales. We present the design and results of simulated and realized sensors now deployed at Fermilab for future use as pulse-to-pulse proton intensity monitors at the Mu2e experiment. In addition, inspired by this and prior work, we investigate the use of broadband mm-wave dual-ridge waveguides as a means of measuring substructure of nanosecond bunches down to the tens of picosecond level for future use at the Long Baseline Neutrino Facility (LBNF).
Comments15th International Beam Instrumentation Conference (IBIC2026)
