Dynamic characteristics of helium adsorbents. Influence of the heat removal conditions

被引：1
|
作者：
Shcherbachenko, R. I. [1 ]
Grigor'ev, V. N. [1 ]
机构：
[1] Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
来源：
LOW TEMPERATURE PHYSICS | 2008年 / 34卷 / 06期
关键词：
D O I：
10.1063/1.2920182
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The static and dynamic characteristics of the adsorbent SKN-1K at 4.2 K are investigated under conditions corresponding to the working conditions of adsorption pumps in dilution refrigerators. It is shown that gluing this adsorbent to the cooled surface leads to a substantial lowering of the pressure in the pump in the dynamic regime. On the basis of experimental data for the glued and free adsorbent an estimate is made of the hydrodynamic contribution to the pressure due to the resistance of the pores of the adsorbent. This estimate falls within the error of measurement.
引用
收藏
页码：481 / 483
页数：3
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