Performance improvement of a pulse tube cooler below 4 K by use of GdAlO3 regenerator material

被引：39

作者：

Qiu, LM

Numazawa, T

Thummes, G

机构：

[1] Univ Giessen, Inst Appl Phys, D-35392 Giessen, Germany

[2] Natl Inst Mat Sci, Tsukuba Magnet Lab, Tsukuba, Ibaraki 3050003, Japan

[3] Zhejiang Univ, Cyrogen Lab, Hangzhou 310027, Peoples R China

来源：

CRYOGENICS | 2001年 / 41卷 / 09期

关键词：

pulse tuber; regenerators; heat capacity; liquid helium;

D O I：

10.1016/S0011-2275(01)00146-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The cooling power and coefficient of performance of a two-stage pulse tube cooler below 4 K have been increased greatly by using the newly developed ceramic magnetic regenerative material GdAlO3 (GAP). Cooling powers of 200 mW at 2.8 K, 300 mW at 3.13 K, and 400 mW at 3.70 K have been achieved with a compressor input power of about 4.8 kW. The results show that the cooling power near 3.0 K increases by 150% compared to that of the same pulse tube cooler (PTC) employing only conventional HoCu2, and ErNi regenerator materials. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：693 / 696

页数：4

共 9 条

[1]

KE G, 1994, ADV CRYOG ENG, V40, P639

[2] NOVEL CONFIGURATION OF 3-STAGE PULSE TUBE REFRIGERATOR FOR TEMPERATURES BELOW 4-K [J].

MATSUBARA, Y ;

GAO, JL .

CRYOGENICS, 1994, 34 (04) :259-262

[3]

Numazawa T, 2001, CRYOCOOLERS 11, P465

[4]

NUMAZAWA T, 2001, CEC ICMC 2001 JUL

[5]

NUMAZAWA T, 2002, IN PRESS ADV CRYOG E, V47

[6]

QIU LM, 2001, CEC ICMC 2001 JUL

[7]

QIU LM, 2002, IN PRESS ADV CRYOG E, V47

[8]

Thummes G, 2001, CRYOCOOLERS 11, P597

[9] A two-stage pulse tube cooler operating below 4 K [J].

Wang, C ;

Thummes, G ;

Heiden, C .

CRYOGENICS, 1997, 37 (03) :159-164

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