Dry 3He/4He-Dilution refrigerator with pulse tube cooler

带脉冲管冷却器的干式 3He/4He 稀释制冷机

• 批准号: 467785074
• 金额: --
• 依托单位: Karlsruher Institut für Technologie (KIT)
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2021
• 资助国家: 德国
• 起止时间: 2020-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/467785074?language=en
• 关键词: Dry; 3He; 4He; Dilution; refrigerator

The gain of new knowledge in science as well as the expansion of technological possibilities in the industrial environment are very often accompanied by advances in the development of sensor and detector systems. In particular, it very often becomes apparent that conventional detector and sensor systems do not meet the requirements set by science, society and industry. For this reason, there is nowadays a strong focus on developing detectors and sensors based on quantum technology. By exploiting quantum mechanical effects, this kind of detectors allow increasing the detector performacne far beyond the limits of classical systems. The research activities at the Institute of Micro- and Nanoelectronic Systems (IMS) at Karlsruhe Institute of Technology (KIT) aim at the development of such quantum-technological detectors and sensors. Specifically, superconductor-based multi-channel detector and sensor systems with ultra-high time and energy resolution are developed in order to establish them as a key technology in basic research, applied research as well as industry.For the operation and characterization of the developed detectors, a 3He/4He dilution refrigerator is required that can continuously generate the operating temperatures between 10 mK and 10 K as required for the different detector and sensor technologies. Pre-cooling of the system must not require the use of a helium bath or must be based on a pulse tube cooler to allow the coupling of photons or massive particles from external sources. In addition, the cryostat must offer the possibility to install cold electronic components necessary for the operation of the detectors and sensors.

科学新知识的获得以及工业环境中技术可能性的扩展往往伴随着传感器和检测器系统的发展。特别地，常规检测器和传感器系统不满足科学、社会和工业所设定的要求常常变得明显。因此，现在人们非常关注开发基于量子技术的探测器和传感器。通过利用量子力学效应，这类探测器可以提高探测器的性能，远远超出经典系统的限制。 卡尔斯鲁厄理工学院（KIT）微纳电子系统研究所（IMS）的研究活动旨在开发这种量子技术探测器和传感器。具体而言，开发具有超高时间和能量分辨率的基于超导体的多通道探测器和传感器系统，以便将其确立为基础研究、应用研究以及工业的关键技术。a 3He/要求4 He稀释制冷机能够根据不同探测器的要求连续产生10 mK至10 K之间的工作温度，传感器技术系统的预冷却必须不需要使用氦浴，或者必须基于脉冲管冷却器，以允许来自外部源的光子或大质量粒子的耦合。此外，低温恒温器必须能够安装探测器和传感器运行所需的冷电子元件。