A high capacity completely closed-cycle 250 mK 3He refrigeration system based on a pulse tube cooler

被引：39

作者：

Devlin, MJ ^{[1
]}

Dicker, SR ^{[1
]}

Klein, J ^{[1
]}

Supanich, MP ^{[1
]}

机构：

[1] Univ Penn, David Rittenhouse Labs, Philadelphia, PA 19104 USA

来源：

CRYOGENICS | 2004年 / 44卷 / 09期

关键词：

cryogen-free; He-3 adsorption refrigerator; pulse tube cooler;

D O I：

10.1016/j.cryogenics.2004.03.001

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

We present the design of a completely closed-cycle refrigeration system. The system consists Of four stages; the first two, 40.5 and 2.7 K, are provided by a pulse tube cooler, the third and fourth stages by helium adsorption refrigerators. The adsorption refrigerators use He-4 and He-3 with base temperatures of 700 and 250 mK, respectively. Performance tests including some with the cooler rotated from the vertical showed that with a load of 15 muK, a temperature below 286 mK can be maintained for 72 h. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：611 / 616

页数：6

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