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首页> 外文期刊>Review of Scientific Instruments >Sub-millikelvin stabilization of a closed cycle cryocooler
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Sub-millikelvin stabilization of a closed cycle cryocooler

机译:密闭循环冷冻机的亚millikelvin稳定性

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摘要

Intrinsic temperature oscillations (with the amplitude up to 1 K) of a closed cycle cryocooler are stabilized by a simple thermal damping system. It employs three different materials with different thermal conductivity and specific heat at various temperatures. The amplitude of oscillations of the sample temperature is reduced to less than 1 mK, in the temperature range from 4 K to 300 K, while the cooling power is virtually undiminished. The damping system is small, inexpensive, can be retrofitted to most existing closed cycle cryocoolers, and may improve measurements of any temperature-sensitive physics properties.
机译:闭式循环制冷机的固有温度振荡(幅度高达1 K)通过简单的热阻尼系统得以稳定。它采用三种不同的材料,它们在不同的温度下具有不同的导热率和比热。在4 K到300 K的温度范围内,样品温度的振荡幅度减小到小于1 mK,而冷却功率实际上并未降低。该阻尼系统体积小,价格便宜,可以改装为大多数现有的闭式循环冷却器,并且可以改善对温度敏感的物理特性的测量。

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