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Magnetoresistive-superconducting mixed sensors for biomagnetic applications

Autor: J.F. Jacquinot, H. Dyvorne, Claude Fermon, A.L. Walliang, H. Polovy, Myriam Pannetier-Lecoeur

Publikováno v: Journal of Magnetism and Magnetic Materials. 322:1647-1650

When coupled to a giant magnetoresistive (GMR) sensor, a superconducting loop containing a constriction can be a very sensitive magnetometer. It has thermal noise levels of few fT/sqrt(Hz), comparable to low-Tc SQUID noise, with a flat frequency resp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e96f26c4e8ccd5c2d9788a8535e8c8ff
https://doi.org/10.1016/j.jmmm.2009.03.012

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NMR With Superconducting-GMR Mixed Sensors

Autor: Claude Fermon, H. Polovy, H. Dyvorne, Myriam Pannetier-Lecoeur, A.L. Walliang

Publikováno v: IEEE Transactions on Applied Superconductivity. 19:819-822

We have developed a very sensitive field sensor to detect magnetic signals in the femtotesla range. This mixed sensor is based on the association of a superconducting flux-to-field transformer with a magnetoresistive field sensor. The bandwidth of a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aff93723a9597a9eb4ebcf604030ca3a
https://doi.org/10.1109/tasc.2009.2018767

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High Critical Temperature Superconducting Wire Based Flux Transformers

Autor: Myriam Pannetier-Lecoeur, Ruben Guerrero, Claude Fermon, H. Dyvorne, J. F. Jacquinot

Publikováno v: IEEE Transactions on Applied Superconductivity. 19:761-763

Flux transformers are currently used for signal detection with high sensitivity magnetometers like SQUIDS , as an alternative to direct coupling between the magnetometer and the sample. To avoid extra noise, most of them are made of superconducting m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::995de1eb8ff13368721374a15cfff06a
https://doi.org/10.1109/tasc.2009.2018539

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Very low field magnetic resonance imaging with spintronic sensors

Autor: Paolo Campiglio, M. Pannetier-Lecoeur, Guenaelle Jasmin-Lebras, Claude Fermon, H Dyvorne, A. Demonti, Q Herreros

Publikováno v: Review of Scientific Instruments
Review of Scientific Instruments, American Institute of Physics, 2013, ⟨10.1063/1.4821657⟩
Review of Scientific Instruments; Vol 84
Review of Scientific Instruments, 2013, ⟨10.1063/1.4821657⟩

International audience; A very low field magnetic resonance imaging (MRI) setup based on magnetoresistive-superconducting mixed sensors is presented. A flux transformer is used to achieve coupling between the sample to image and the mixed sensor. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fffd48afdede2200e5c3a3fdd633caf0
https://hal-cea.archives-ouvertes.fr/cea-01231696

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GMR-based sensors for ultra-sensitive magnetometry

Autor: N. Sergeeva-Chollet, J. Paul, H. Polovy, H. Dyvorne, Claude Fermon, Myriam Pannetier-Lecoeur

Publikováno v: 2009 IEEE Sensors.

Ultra-sensitive magnetometry addresses the detection of extremely small magnetic signals, typically in the femtotesla range, and is required for magnetic brain signal acquisition (Magnetoencephalography) and Low-Field Magnetic Resonance Imaging (LF-M

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03088213c5f19ec7db379f9c88ad2aaa
https://doi.org/10.1109/icsens.2009.5398408

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Flux transformers made of commercial high critical temperature superconducting wires

Autor: H. Dyvorne, M. Pannetier-Lecoeur, Claude Fermon, Jacques Jacquinot, Joseph Scola

Publikováno v: The Review of scientific instruments. 79(2 Pt 1)

We have designed flux transformers made of commercial BiSCCO tapes closed by soldering with normal metal. The magnetic field transfer function of the flux transformer was calculated as a function of the resistance of the soldered contacts. The perfor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a039d3d250f062493823676ec0a668e4
https://pubmed.ncbi.nlm.nih.gov/18315329

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Low field MRI with magnetoresistive mixed sensors

Autor: G Cannies, H Dyvorne, H Polovy, Q Herreros, Juhani Dabek, Claude Fermon, Myriam Pannetier-Lecoeur, N Sergeeva-Chollet, G. Le Goff

Publikováno v: Journal of Physics: Conference Series. 303:012055

Low-field magnetic resonance imaging (MRI) requires very sensitive magnetometers for detection of weak magnetic signals in femtoTesla range. Magnetoresistive mixed sensors could be used as the sensitive magnetometers [1]. These sensors are the combin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d9663c87c45b081bb76bb29441b771fe
https://doi.org/10.1088/1742-6596/303/1/012055

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