AI 中文总结
该研究针对同轴线内导体热传导问题，测量三种商用0 dB低温微波衰减器作为热沉的温度数据，为高频低温实验样品热环境设计提供依据。
AI 中文摘要
同轴线缆广泛应用于凝聚态与量子实验的射频和微波低温装置中。由于同轴线的内导体常与待测样品良好热接触，需了解内导体传导的声子热。尽管低温衰减器被广泛用于使同轴线内导体热平衡，但据我们所知，尚无定量信息。我们提供了三种商用0 dB衰减器作为热沉的有效性数据，具体测量了多个0 dB衰减器的内插针在热负载下的温度。该信息将有助于设计和精细控制稀释制冷机及核退磁级上高频实验中样品的热环境。
英文摘要
Coaxial cables are widely used in radiofrequency and microwave cryogenic setups for condensed matter and quantum experiments. Since the inner conductor of coaxes is often in good thermal contact with the sample to be measured, it is desirable to know the phononic heat channeled by the inner conductor. Although cryogenic attenuators are widely used to thermalize the inner conductor of coaxes, to our knowledge, quantitative information is not available. We present data on the effectiveness of three commercially available 0 dB attenuators as thermal heatsinks. In particular, we measured the temperature of the inner pin of several 0 dB attenuators under a heat load. This information will aid in designing and carefully controlling the thermal environment of samples in high-frequency experiments mounted in dilution refrigerators and on nuclear demagnetization stages.
Journal refJournal of Low Temperature Physics 222, 117 (2026)
DOI：10.1007/s10909-026-03453-0
