A high-TC SQUID based magnetophysiology system

被引：3

作者：

Magnelind, PE ^{[1
]}

Ivanov, Z

Tzalenchuk, AY

Tarte, EJ

Lohmus, A

机构：

[1] Dept Microelect & Nanosci, SE-41296 Gothenburg, Sweden

[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

[3] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2003年 / 13卷 / 02期

关键词：

magnetic field noise; magnetic recordings; magnetophysiology system; SQUID sensors;

D O I：

10.1109/TASC.2003.813855

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 report on the present status of our high-T-c SQUID based system for measurements of room temperature samples. The main application of the system is magnetic recordings of signals in nerve tissue, i.e., magnetophysiology. We have fabricated four slotted SQUID sensors of two different designs. The best SQUID sensor shows an intrinsic white noise of 8.2 muPhi(0)/Hz(1/2) and a corresponding magnetic field noise of 4.5 pT/Hz(1/2) at 77 K.

引用

页码：368 / 370

页数：3

共 12 条

[1] High-T-c super conducting quantum interference devices with slots or holes: Low 1/f noise in ambient magnetic fields [J].

Dantsker, E ;

Tanaka, S ;

Clarke, J .

APPLIED PHYSICS LETTERS, 1997, 70 (15) :2037-2039

[2] Improved dc SQUID read-out electronics with low 1/f noise preamplifier [J].

Drung, D .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1997, 68 (11) :4066-4074

[3] Slotted high-Tc dc SQUID magnetometers [J].

Jansman, ABM ;

Izquierdo, M ;

Flokstra, J ;

Rogalla, H .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1999, 9 (02) :3290-3293

[4] 3D-MLSI: Software package for inductance calculation in multilayer superconducting integrated circuits [J].

Khapaev, MM ;

Kidiyarova-Shevchenko, AY ;

Magnelind, P ;

Kupriyanov, MY .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2001, 11 (01) :1090-1093

[5]

LEE TF, 1997, THESIS U CALIFORNIA

[6] High-T-c SQUID microscope for room temperature samples [J].

Lee, TS ;

Chemla, YR ;

Dantsker, E ;

Clarke, J .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1997, 7 (02) :3147-3150

[7] Comparison of MEG and EEG on the basis of somatic evoked responses elicited by stimulation of the snout in the juvenile swine [J].

Okada, Y ;

Lähteenmäki, A ;

Xu, CB .

CLINICAL NEUROPHYSIOLOGY, 1999, 110 (02) :214-229

[8] MEG SOURCE MODELS AND PHYSIOLOGY [J].

OKADA, Y ;

LAURITZEN, M ;

NICHOLSON, C .

PHYSICS IN MEDICINE AND BIOLOGY, 1987, 32 (01) :43-51

[9] Genesis of MEG signals in a mammalian CNS structure [J].

Okada, YC ;

Wu, J ;

Kyuhou, S .

ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY, 1997, 103 (04) :474-485

[10] High Tc SQUID systems for magnetophysiology [J].

Tarte, EJ ;

Magnelind, PE ;

Tzalenchuk, AY ;

Lohmus, A ;

Ansell, DA ;

Blamire, MG ;

Ivanov, ZG ;

Dyball, RE .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2002, 368 (1-4) :50-54

← 1 2 →