NEW TECHNIQUE FOR IMPROVED LOW-TEMPERATURE SQUID NMR MEASUREMENTS

被引：35

作者：

WEBB, RA

机构：

[1] Argonne Nat. Lab., Argonne, Ill. 60439, United States

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1977年 / 48卷 / 12期

关键词：

Helium; -; Spectrometers; Magnetic resonance - Superconducting devices;

D O I：

10.1063/1.1134950

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A description of the technique used for performing a variety of SQUID NMR measurements in fields varying from 3. 7 to 309 G is presented. Pulsed NMR, cw NMR, adiabatic fast passage, and static susceptibility measurements have been made on liquid **3He, using the same detection system, in the temperature range 1. 2K-2 mK. The spin-lattice relaxation time varied from 100 s at 1 K to as fast as 0. 26 ms at 2 wk. The spin-spin relaxation times varied from 3 plus or minus 10** minus **5 s in 309 G to nearly 3 multiplied by 10** minus **3 s in 3. 7 G.

引用

页码：1585 / 1594

页数：10

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