Multilayer insulation (MLI) is an important technique for the reduction of radiation heat load in cryostats. The present work is focused on investigation for the selection of suitable reflective layer and spacer material in MLI systems. In our analysis, we have selected perforated double-Aluminized Mylar (DAM) with Dacron, unperforated DAM with Silk-net and perforated DAM with Glass-tissue for their evaluation as the reflective layer as well as spacer materials in MLI technique. Current work would discuss the calculation of the effect of layer density and the number of layers on the heat load. Knowing the key parameters of MLI, we have compared the heat load generation in spherical as well as cylindrical cryostats and the effect of layering near and outer surface on the heat load.

中文翻译：

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采用多层绝缘技术减少低温恒温器的热辐射

多层绝缘 (MLI) 是降低低温恒温器辐射热负荷的重要技术。目前的工作重点是研究在 MLI 系统中选择合适的反射层和间隔材料。在我们的分析中，我们选择了带有 Dacron 的穿孔双镀铝聚酯薄膜 (DAM)、带有丝网的未穿孔 DAM 和带有玻璃组织的穿孔 DAM，用于评估它们作为 MLI 技术中的反射层和间隔材料。当前的工作将讨论层密度和层数对热负荷的影响的计算。了解 MLI 的关键参数后，我们比较了球形和圆柱形低温恒温器的热负荷产生以及近表面和外表面分层对热负荷的影响。