A solid-nitrogen cooled Nb3SnNMR magnet operating in the range 8-10-K

被引：7

作者：

Iwasa, Y ^{[1
]}

Wheatley, R

Bascuñán, J

Haid, B

Lee, HG

机构：

[1] MIT, Francis Bitter Natl Magnet Lab, Cambridge, MA 02139 USA

[2] AMI, Oak Ridge, TN 37831 USA

[3] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[4] FBML, Cambridge, MA 02139 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2003年 / 13卷 / 02期

关键词：

cryocooler-decoupled operation of a superconducting magnet; solid neon; solid nitrogen;

D O I：

10.1109/TASC.2003.812851

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：

This paper presents a reference design of a solid-nitrogen cooled 300-MHz/25 mm Nb3Sn NMR magnet based on a novel design/operation concept. The magnet operates in the temperature range 8-10 K with its cryocooler thermally decoupled from the magnet and idled. A mass of solid nitrogen in thermal contact with the magnet prolongs the magnet warm-up time to 17 h, during which NMR measurement may be performed under a quiet environment free of the cryocooler's microphonics. At 10 K, the magnet is re-coupled to the cryocooler for recooling to 8 K and ready for another 17-h measurement.

引用

页码：1636 / 1639

页数：4