BIOMAGNETIC SUSCEPTOMETER WITH SQUID INSTRUMENTATION

被引：35

作者：

PAULSON, DN

FAGALY, RL

TOUSSAINT, RM

FISCHER, R

机构：

[1] BIOMAGNET TECHNOL INC, SAN DIEGO, CA 92121 USA

[2] UNIV HAMBURG, W-2000 HAMBURG 13, GERMANY

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1991年 / 27卷 / 02期

关键词：

D O I：

10.1109/20.133904

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：

We discuss the use of a new SQUID magnetometer for non-invasive measurements of hepatic (liver) iron stores. Placement of the SQUID, detection coil, and magnet in the dewar vacuum region significantly reduced system noise. In addition, the system incorporates multiple magnets and detection coils which may allow the discrimination of the surface skin layer from the deeper (weaker signal) true liver iron concentration. Measurements indicate an instrumental noise level < 20-mu-g/g of equivalent iron concentration.

引用

页码：3249 / 3252

页数：4

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