AI 中文总结
针对NICE需在15K深低温下重复室温深消零测量的需求，介绍用于组件低温测试的“Ice Cube”小型低温恒温器及相关测试活动。
AI 中文摘要
消零干涉仪低温实验（Nulling Interferometry Cryogenic Experiment，NICE）是大型系外行星干涉仪（Large Interferometer For Exoplanets，LIFE）空间任务合束器的实验测试平台。截至目前，NICE的研究进展仅局限于室温实验台，我们在300K温度下、4至5微米波长处记录到了深消零（<10^-5）的进展。然而，NICE的最终目标和要求是在行星系统所需的灵敏度水平下重复这些测量，这需要15K的深低温条件。在此，我们介绍“Ice Cube”低温恒温器，它是未来NICE低温恒温器的小型版本，用于组件和子系统级的低温测试，该恒温器与使用分孔径干涉仪和波前传感器的测量装置相连。我们还将介绍测试活动，以了解将室温实验台转换为低温运行时将面临的材料和安装挑战。
英文摘要
The Nulling Interferometry Cryogenic Experiment (NICE) is an experimental testbed for the beam combiner of the Large Interferometer For Exoplanets (LIFE) space mission. Until now, progress on NICE has been confined to an ambient bench, where we have recorded progress in deep ($<10^{-5}$) nulls at wavelengths between 4 and 5 microns at 300 K. However, the ultimate goal and requirement of NICE is to repeat these measurements at the sensitivity levels expected for a planetary system, requiring deep cryogenic conditions at 15 K. Here, we describe the ``Ice Cube'' cryostat, a small version of the future NICE cryostat that is used for component and subsystem level cryogenic testing. This is interfaced with a measurement setup using a segmented aperture interferometer and a wavefront sensor. We will also describe the testing campaign for understanding the material and mounting challenges that will be faced when translating the warm bench to cryogenic operations.
Comments11 pages, 9 figures; Submitted to the proceedings of Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VII, SPIE Astronomical Telescopes + Instrumentation 2026. Paper No. 14154-97
