http://www.cnr.it/ontology/cnr/individuo/prodotto/ID18849
Magnetic Dipole Imaging by a Scanning Magnetic Microscope (Articolo in rivista)
- Type
- Label
- Magnetic Dipole Imaging by a Scanning Magnetic Microscope (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1088/0957-0233/19/1/015508 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- MAdamo1,2, C Nappi2 and E Sarnelli2 (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1 Department of Physical Sciences, University of Naples 'Federico II', Naples, Italy
2 CNR, Istituto di Cibernetica 'E. Caianiello', Via Campi Flegrei 34, Pozzuoli, Naples, Italy (literal)
- Titolo
- Magnetic Dipole Imaging by a Scanning Magnetic Microscope (literal)
- Abstract
- A reconstruction technique to evaluate residual magnetic fields and simulate magnetic images
due to dipole distribution in ferromagnetic samples has been proposed in connection with a
scanning magnetic microscope based on a high-Tc superconducting quantum interference
device (SQUID). We have extended the expression of a point magnetic dipole to represent
spatially extended sources and the generated magnetic field has been compared with
experiments. In particular, a recently installed scanning SQUID magnetic microscope (model
770 by Tristan Technology) has been used. Magnetic maps obtained at different
sample-to-sensor distances and in several configurations have been compared with
simulations. With this aim, ferromagnetic rod samples have been modeled as extended
magnetic dipoles close to the sensor. Excellent agreement has been obtained, confirming the
efficiency of the proposed technique. Such an imaging technique has been demonstrated to be
an easy-to-handle tool to identify dipole configurations producing a specific magnetic image. (literal)
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