AN NMR MULTIFID METHOD FOR MEASUREMENT OF MAGNETIC-FIELD GRADIENT

被引：16
|
作者：
BARTUSEK, K [1 ]
PUCZOK, V [1 ]
机构：
[1] STELAR CS, CS-61600 BRNO, CZECHOSLOVAKIA
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 1993年 / 4卷 / 03期
关键词：
D O I：
10.1088/0957-0233/4/3/015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The described MULTIFID method, that allows measurement of the time characteristic of the magnetic field gradient G(z)(t), is based on the measurement of the instantaneous frequency Of FID signals periodically recorded immediately after switching off the gradient pulse. The method was used for a fast and sufficiently accurate determination of the pre-emphasis time and amplitude constants. The pre-emphasis filter used allowed us to shorten the decay time of the gradient magnetic field G(z) from 200 ms to 100 mus and, thereby, to carry out a good compensation for the influence of eddy currents for the purposes Of NMR spectroscopy and
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页码：357 / 361
页数：5
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