DMRadio-50L 的低温系统
仪器与探测器
2026-07-07 v1
摘要
DMRadio-50L 实验旨在使用集总元件 LC 谐振器和环形磁体在 5 kHz - 5 MHz 频率范围内寻找轴子暗物质，并作为量子传感器的测试平台。本文描述了为在标准实验室环境中满足实验严格要求而开发的特制低温系统。该系统旨在将 200 kg 的探测器组件冷却至低至 50 mK 的温度，同时在多个温度阶段提供足够的冷却功率。我们介绍了混合低温系统的概念设计、技术实现和实测性能，该系统结合了水平稀释制冷机与大型垂直有效载荷低温恒温器。
引用
@article{arxiv.2607.05771,
title = {The Cryogenic System of DMRadio-50L},
author = {V. Ankel and C. Bartram and J. Begin and C. Bell and S. Chaudhuri and H. -M. Cho and J. Corbin and W. Craddock and S. Cuadra and A. Droster and J. Echevers and E. Engelhardt and J. T. Fry and J. Fu and K. D. Irwin and A. Keller and R. Kolevatov and A. Kunder and D. Li and M. Marangola and N. Otto and K. M. W. Pappas and E. Pariset and S. Puranam and P. Quassolo and N. M. Rapidis and C. P. Salemi and M. Simanovskaia and J. Singh and P. Stark and E. C. van Assendelft and K. van Bibber and K. J. Vetter and K. Wells and J. Wiedemann and L. Winslow and D. Wright and A. K. Yi and B. F. Zemenu},
journal= {arXiv preprint arXiv:2607.05771},
year = {2026}
}