Biomagnetic measurements with an integrated YBa2Cu3O7 magnetometer in a hand-held cryostat

被引：10

作者：

Schilling, M ^{[1
]}

Krey, S ^{[1
]}

Scharnweber, R ^{[1
]}

机构：

[1] UNIV HAMBURG,ZENTRUM MIKROSTRUKTURFORSCH,D-20355 HAMBURG,GERMANY

来源：

APPLIED PHYSICS LETTERS | 1996年 / 69卷 / 18期

关键词：

D O I：

10.1063/1.117699

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

With low-noise magnetometers made from high-temperature superconductors, mobile applications of superconducting quantum interference device (SQUID) magnetometry become possible. Due to the high volume heat of evaporation of liquid nitrogen, a SQUID magnetometer can be operated in a small size cryostat for some hours. For the first time biomagnetic measurements are presented using an integrated YBa2Cu3O7 magnetometer mounted in a hand-held cryostat with a content of 100 cm(3) of liquid nitrogen. These measurements and the noise properties are compared to those made in a conventional cryostat. The low-noise magnetometer consists of a multiloop pick-up coil coupled inductively to a de SQUID based on ramp-type Josephson junctions with PrBa2Cu3O7 barriers. (C) 1996 American Institute of Physics.

引用

页码：2749 / 2751

页数：3

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