A COMPACT DILUTION REFRIGERATOR WITH VERTICAL HEAT-EXCHANGERS FOR OPERATION TO 2 MK

被引：20

作者：

BUNKOV, YM ^{[1
]}

GUENAULT, AM ^{[1
]}

HAYWARD, DJ ^{[1
]}

JACKSON, DA ^{[1
]}

KENNEDY, CJ ^{[1
]}

NICHOLS, TR ^{[1
]}

MILLER, IE ^{[1
]}

PICKETT, GR ^{[1
]}

WARD, MG ^{[1
]}

机构：

[1] ACAD SCI USSR,INST PHYS PROBLEMS,MOSCOW V-71,USSR

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 1991年 / 83卷 / 5-6期

关键词：

D O I：

10.1007/BF00683626

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We describe a compactly designed dilution refrigerator with closely packed, vertical heat exchangers. The refrigerator reaches a temperature of 2mK and is easily constructed, since the sintered heat exchangers are straight units. Vibrating wire resonators are employed in the mixing chamber as diagnostic tools, which may act as both thermometers and phase-boundary level indicators. There is a design problem in the vertical arrangement, namely, the sumps on the concentrated phase side that can slowly fill with dilute phase and degrade the performance. The problem is solved by draining the superfluid He-4 component in any collected dilute phase through superleaks into the mixing chamber.

引用

页码：257 / 272

页数：16

共 9 条

[1] A DILUTION REFRIGERATOR COMBINING LOW BASE TEMPERATURE, HIGH COOLING POWER AND LOW HEAT LEAK FOR USE WITH NUCLEAR COOLING [J].