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arXiv 2404.03096physics.ins-deteess.SP
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ECHo-100k实验的全尺寸读出电子学

Full-Scale Readout Electronics for the ECHo-100k Experiment

Institute for Data Processing and Electronics (IPE), Karlsruhe Institute of Technology (KIT)(数据处理与电子学研究所,卡尔斯鲁厄理工学院);Institute of Micro- and Nanoelectronic Systems (IMS), Karlsruhe Institute of Technology (KIT)(微纳电子系统研究所,卡尔斯鲁厄理工学院)

T. Muscheid, R. Gartmann, N. Karcher, F. Schuderer, M. Neidig, L. E. Ardila-Perez, M. Balzer, S. Kempf, O. Sander

AI总结:

针对ECHo-100k实验6000个双像素磁微热量计探测器的低温读出需求,开发并测试了基于μMUX和定制SDR的全尺寸微波多路复用读出电子学。

摘要:

低温粒子探测器(如磁微热量计,MMC)开发的最新进展使得制造像素数量不断增加的传感器阵列成为可能。由于这些探测器必须在最低温度下运行,大型探测器阵列的读出仍然极具挑战性。对于ECHo实验而言尤其如此,该实验目前旨在同时运行6000个双像素探测器,以研究电子中微子质量。为此,我们开发了一种基于微波SQUID多路复用器(μMUX)的读出系统,该系统由室温下的定制软件定义无线电(SDR)操作。SDR读出电子学由三个不同的硬件单元组成:带有Xilinx ZynqUS+ MPSoC的数据处理板;具有DAC、ADC和相同时钟分配网络的转换器板;以及用于在基带和微波域之间转换信号的射频前端板。在此,我们描述全尺寸SDR系统的特性。首先,评估了用于驱动μMUX的生成频率梳。随后,通过在直接环回中操作SDR,研究了频率解复用后各个通道的串扰。最后,该系统与16通道μMUX一起使用,以评估SDR的线性度以及对整个读出装置产生的噪声。

英文摘要:

Recent advances in the development of cryogenic particle detectors such as magnetic microcalorimeters (MMCs) allow the fabrication of sensor arrays with an increasing number of pixels. Since these detectors must be operated at the lowest temperatures, the readout of large detector arrays is still quite challenging. This is especially true for the ECHo experiment, which presently aims to simultaneously run 6,000 two-pixel detectors to investigate the electron neutrino mass. For this reason, we developed a readout system based on a microwave SQUID multiplexer ($μ$MUX) that is operated by a custom software-defined radio (SDR) at room-temperature. The SDR readout electronics consist of three distinct hardware units: a data processing board with a Xilinx ZynqUS+ MPSoC; a converter board that features DACs, ADCs, and a coherent clock distribution network; and a radio frequency front-end board to translate the signals between the baseband and the microwave domains. Here, we describe the characteristics of the full-scale SDR system. First, the generated frequency comb for driving the $μ$MUX was evaluated. Subsequently, by operating the SDR in direct loopback, the crosstalk of the individual channels after frequency demultiplexing was investigated. Finally, the system was used with a 16-channel $μ$MUX to evaluate the linearity of the SDR, and the noise contributed to the overall readout setup.

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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