DIGITAL NMR IMAGING-SYSTEM FOR ULTRALOW MAGNETIC-FIELDS

被引：10
|
作者：
DONASCIMENTO, GC [1 ]
ENGELSBERG, M [1 ]
DESOUZA, RE [1 ]
机构：
[1] UNIV FED PERNAMBUCO, DEPT FIS CIDADE UNIV, BR-50739 RECIFE, PE, BRAZIL
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 1992年 / 3卷 / 04期
关键词：
D O I：
10.1088/0957-0233/3/4/006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A low-cost, full-body, ultralow magnetic field NMR imaging system employing digital detection and RF synthesis is described. The data processing, which involves analogue to digital conversion at the Larmor rate of 680 kHz, followed by digital quadrature detection and digital smoothing with undersampling, is analysed. The performance of the system exhibits significant improvements over more conventional systems operating at ultralow magnetic fields.
引用
收藏
页码：370 / 374
页数：5
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