SQUID gradiometer measurement system for magnetorelaxometry in a disturbedenvironment

Authors
Schambach, J Warzemann, L Weber, P Kotitz, R Weitschies, W
Citation
J. Schambach et al., SQUID gradiometer measurement system for magnetorelaxometry in a disturbedenvironment, IEEE APPL S, 9(2), 1999, pp. 3527-3530
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN journal
10518223 → ACNP
Volume
9
Issue
2
Year of publication
1999
Part
3
Pages
3527 - 3530
Database
ISI
SICI code
1051-8223(199906)9:2<3527:SGMSFM>2.0.ZU;2-J
Abstract
A SQUID measurement system for magneto-relaxometry (MRX) in disturbed envir onment is presented. It was developed for the determination of the distribu tion of magnetic nanoparticles in large objects like animals, The system is based on a thin film LTS SQUID gradiometer with a baseline of 5 mm and a f ield gradient sensitivity of about 30 fT/cmHz(1/2). The entire system is PC -controlled and includes a nonmagnetic x-y stage, A Helmholtz coil of 80 cm diameter allows the magnetization of the samples with fields up to 7 mT. F irst measurements in a disturbed environment are presented.