存在读出系统噪声时微波 SQUID 多路复用器的最佳解调域

IF 2.7 3区 物理与天体物理 Q2 PHYSICS, APPLIED
M. E. García Redondo, N. A. Müller, J. M. Salum, L. P. Ferreyro, J. D. Bonilla-Neira, J. M. Geria, J. J. Bonaparte, T. Muscheid, R. Gartmann, A. Almela, M. R. Hampel, A. E. Fuster, L. E. Ardila-Perez, M. Wegner, M. Platino, O. Sander, S. Kempf, M. Weber
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引用次数: 0

摘要

微波 SQUID 多路复用器(μMUX)是天文学和粒子物理学领域各种实验中大量低温探测器读出的首选设备。虽然它具有很大的复用系数,但系统噪声性能在很大程度上取决于用于读出它的冷读出和暖读出电子系统,以及所选择的解调域和参数。为了了解读出系统对整个探测系统噪声性能的影响,首先,我们扩展了现有的 μMUX 仿真框架,包括探测音调中的加性和乘性噪声源(即相位和振幅噪声),以及在谐振器相位或散射振幅中解调科学数据的能力。然后,考虑到加性噪声是主要噪声源,我们为上述领域的开环和通量斜坡解调方案找到了实现最小系统噪声的最佳读出参数。随后,我们评估了最佳读出参数下系统噪声对乘法噪声源的敏感性。最后,作为案例研究,我们评估了典型软件定义无线电读出系统的最佳解调域和预期系统噪声水平。这项工作基于可用的读出电子设备和选定的解调域,改进了系统性能预测和噪声工程。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optimal demodulation domain for microwave SQUID multiplexers in presence of readout system noise
The Microwave SQUID Multiplexer (μMUX) is the device of choice for the readout of a large number of low-temperature detectors in a wide variety of experiments within the fields of astronomy and particle physics. While it offers large multiplexing factors, the system noise performance is highly dependent on the cold- and warm-readout electronic systems used to read it out, as well as the demodulation domain and parameters chosen. In order to understand the impact of the readout systems in the overall detection system noise performance, first, we extended the available μMUX simulation frameworks, including additive and multiplicative noise sources in the probing tones (i.e., phase and amplitude noise), along with the capability of demodulating the scientific data, either in the resonator’s phase or the scattering amplitude. Then, considering the additive noise as a dominant noise source, the optimum readout parameters to achieve minimum system noise were found for both open-loop and flux-ramp demodulation schemes in the aforementioned domains. Later, we evaluated the system noise sensitivity to multiplicative noise sources under the optimum readout parameters. Finally, as a case study, we evaluated the optimal demodulation domain and the expected system noise level for a typical software-defined radio readout system. This work leads to an improved system performance prediction and noise engineering based on the available readout electronics and the selected demodulation domain.
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来源期刊
Journal of Applied Physics
Journal of Applied Physics 物理-物理:应用
CiteScore
5.40
自引率
9.40%
发文量
1534
审稿时长
2.3 months
期刊介绍: The Journal of Applied Physics (JAP) is an influential international journal publishing significant new experimental and theoretical results of applied physics research. Topics covered in JAP are diverse and reflect the most current applied physics research, including: Dielectrics, ferroelectrics, and multiferroics- Electrical discharges, plasmas, and plasma-surface interactions- Emerging, interdisciplinary, and other fields of applied physics- Magnetism, spintronics, and superconductivity- Organic-Inorganic systems, including organic electronics- Photonics, plasmonics, photovoltaics, lasers, optical materials, and phenomena- Physics of devices and sensors- Physics of materials, including electrical, thermal, mechanical and other properties- Physics of matter under extreme conditions- Physics of nanoscale and low-dimensional systems, including atomic and quantum phenomena- Physics of semiconductors- Soft matter, fluids, and biophysics- Thin films, interfaces, and surfaces
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