Test results of long term operation of the superfluid-cooled cryostat for a 1 GHz NMR spectrometer

被引：6

作者：

Ito, S ^{[1
]}

Miki, T

Yoshikawa, M

Hamada, M

Kawate, Y

Hayashi, S

Sato, A

Kiyoshi, T

Matsumoto, F

Nagai, H

Wada, H

Fukui, S

Noguchi, T

机构：

[1] Kobe Steel Ltd, Kobe, Hyogo 6512271, Japan

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

[3] Cryovac Co, Osaka 5550013, Japan

[4] Ikegami Technol, Chiba 2810043, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2002年 / 12卷 / 01期

关键词：

cryostat; magnet; NMR; superfluid;

D O I：

10.1109/TASC.2002.1018652

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：

A superfluid cryostat for an 1 GHz-NMR magnet has been developed and its performance was tested. The magnet was successfully energized up to 21.6 T corresponding to a resonance frequency of 920 MHz this April. Before the 920 MHz operations, the magnet was operated for 5 months at the 900 MHz field to check the long-term reliability of the. cryogenic system. Stable cryogenic performance has been confirmed through this operation. The Hell bath temperature was kept constant below 1.6 K Without any trouble related to the cryostat. The resultant heat load at 1.6 K was 0.55 W. The total helium consumption rate was 800 cc/h.

引用

页码：1347 / 1350

页数：4

共 6 条

[1] Development and operation of superconducting NMR magnet beyond 900 MHz [J].

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Sato, A ;

Takeuchi, T ;

Itoh, K ;

Matsumoto, S ;

Ozaki, O ;

Wada, H ;

Yoshikawa, M ;

Kamikado, T ;

Ito, S ;

Miki, T ;

Hase, T ;

Hamada, M ;

Hayashi, S ;

Kawate, Y ;

Hirose, R .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2001, 11 (01) :2347-2350

[2]

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[3]

MIKI T, 1998, ICEC, V17, P835

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