8 T Cryogen Free Magnet With a Variable Temperature Insert Using a Heat Switch

被引：11

作者：

Demikhov, E. ^{[1
]}

Kostrov, E. ^{[1
]}

Lysenko, V. ^{[1
]}

Piskunov, N. ^{[1
]}

Troitskiy, V. ^{[2
]}

机构：

[1] RTI Cryomagnet Syst, Moscow, Russia

[2] RAS, PN Lebedev Phys Inst, Moscow 119991, Russia

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2010年 / 20卷 / 03期

关键词：

Cryogen-free; heat switch; high magnetic field; superconducting magnet;

D O I：

10.1109/TASC.2010.2041592

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The paper presents design and test results for a conduction cooled 8 T superconducting magnetic system with a variable temperature insert for electrical measurements. The system is based on one Pulse Tube cryocooler. The helium gas gap heat switch is used as controllable thermal link between variable temperature chamber and the 4 K stage to avoid overheating of the magnet at high temperatures of the insert. The superconducting magnet is manufactured from NbTi wire and impregnated with epoxy resin by "wet" technology. The clear diameter of variable temperature chamber is 20 mm. The system provides sample temperature range of 5.4-300 K. The maximum operating magnetic field depends on the temperature of the insert and belongs to the range of 7.1-8.2 T. The cool down time of the magnet from room temperature to 3.6 K is 6 hours.

引用

页码：612 / 615

页数：4

共 4 条

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[3] GIEBELER F, 2004, SUPERCOND SCI TECH, P135
[4] Development of 15 T cryogen-free superconducting magnets
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Fukumizu, S.
Muroo, Y.
Miyata, H.
Okui, Y.
Itoki, A.
Kamikado, T.
Ozaki, O.
Nunoya, Y.
Okuno, K.
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