Microwave SQUID Multiplexing and Cryogenics

微波 SQUID 多路复用和低温学

• 批准号: 272196479
• 负责人: Professor Dr. Christian Walter Dietrich Enss
• 金额: --
• 依托单位: Institut für Mikro- und Nanoelektronische Systeme (IMS)
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/272196479?language=en
• 关键词: Microwave; SQUID; Multiplexing; Cryogenics

The investigation of the electron neutrino mass by means of the calorimetric measurement of the electron capture spectrum of 163Ho requires the operation of large MMC based detector arrays. Within the first funding phase of the Research Unit "ECHo", we have developed a scalable multiplexing technique for realizing the readout of these large detector arrays. The present project aims to use this multiplexing technique to implement a readout system for ECHo-100k that will use about 6000 individual detectors to investigate the electron neutrino mass on a 2 eV/c2 level. The development, realization and operation of this readout system requires the design, fabrication and testing of the multiplexer devices as well as the integration of them into the overall detector setup which will be developed in close collaboration with WG2 and WG4. In addition, we will install and commission the cryogenic microwave setups consisting among other devices of the superconducting coaxial cables, the HEMT amplifier as well as the cryogenic circulator. Another quite important task is the commission of the software defined radio based room-temperature readout electronics which operates the actual multiplexer devices. The project further aims to pave the way for performing an even larger 163Ho based experiment in the future. For this, we will perform a dedicated R&D program to explore the suitability of hybrid multiplexing techniques, to lower the noise of the readout system as well as to develop new superconducting microwave devices to increase the cost efficiency of the overall readout system.

用量热法测量163Ho的电子俘获谱来研究电子中微子的质量需要大型MMC探测器阵列的操作。在研究单位“ECHo”的第一个资助阶段，我们开发了一种可扩展的多路复用技术，用于实现这些大型探测器阵列的读出。目前的项目旨在使用这种多路复用技术来实现ECHo-100k的读出系统，该系统将使用大约6000个单独的探测器来研究2 eV/c2水平上的电子中微子质量。该读出系统的开发、实现和运行需要多路复用器器件的设计、制造和测试，并将其集成到整个检测器设置中，该设置将与WG2和WG4密切合作开发。此外，我们将安装和调试低温微波装置，包括超导同轴电缆、HEMT放大器和低温循环器等设备。另一项相当重要的任务是软件定义的基于无线电的室温读出电子设备的调试，该电子设备操作实际的多路复用器设备。该项目进一步旨在为将来进行更大的基于163Ho的实验铺平道路。为此，我们将执行一个专门的研发计划，探索混合复用技术的适用性，以降低读出系统的噪声，并开发新的超导微波器件，以提高整个读出系统的成本效率。