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arXiv 2001.04363physics.ins-dethep-exhep-ph
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MADMAX介质晕圈仪原理助推器装置的首次验证

A first proof of principle booster setup for the MADMAX dielectric haloscope

Jacob Egge, Stefan Knirck, Béla Majorovits, Christopher Moore, Olaf Reimann

摘要:

轴子和类轴子粒子是理想的低质量暗物质候选者。MADMAX实验的目的是利用强磁场下不同介电常数的材料之间的边界产生的电磁波的轴子诱导发射,直接探测质量在$40\,μ{\rm eV}$和$400\,μ{\rm eV}$之间的银河系轴子。结合许多这样的表面,可以使用相长干涉和共振来显著增强(提升)这种发射。我们提出了这样的助推器系统的原理实现的第一个证明,包括一个铜镜和多达五个蓝宝石磁盘。通过反射率测量研究了系统的电磁响应。的机械精度,校准过程中不必要的反射和重复性的基本调谐算法放置的磁盘进行了研究。我们发现,对于所提出的情况下,电磁响应的群延迟预测的一维计算是充分实现在我们的设置。调谐的可重复性处于百分比水平,并且对这种助推器的灵敏度影响很小。

英文摘要:

Axions and axion-like particles are excellent low-mass dark matter candidates. The MADMAX experiment aims to directly detect galactic axions with masses between $40\,μ{\rm eV}$ and $400\,μ{\rm eV}$ by using the axion-induced emission of electromagnetic waves from boundaries between materials of different dielectric constants under a strong magnetic field. Combining many such surfaces, this emission can be significantly enhanced (boosted) using constructive interference and resonances. We present a first proof of principle realization of such a booster system consisting of a copper mirror and up to five sapphire disks. The electromagnetic response of the system is investigated by reflectivity measurements. The mechanical accuracy, calibration process of unwanted reflections and the repeatability of a basic tuning algorithm to place the disks are investigated. We find that for the presented cases the electromagnetic response in terms of the group delay predicted by one-dimensional calculations is sufficiently realized in our setup. The repeatability of the tuning is at the percent level, and would have small impact on the sensitivity of such a booster.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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