{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360574095353867904.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1063/1.2392722"}},{"identifier":{"@type":"URI","@value":"https://pubs.aip.org/aip/apl/article-pdf/doi/10.1063/1.2392722/14360956/211104_1_online.pdf"}}],"dc:title":[{"@value":"Magnetoencephalography with an atomic magnetometer"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>The authors demonstrate detection and mapping of brain magnetic fields evoked by auditory stimulation with a noncryogenic magnetometer based on spin precession of potassium atoms in spin-exchange-relaxation-free regime. Optical readout using a photodiode array allows flexibility in detector placement while using common elements for most components of the multichannel system. Absence of a cryogenic dewar eliminates magnetic Johnson noise from radiation shields and allows the use of a compact magnetic shield with a high shielding factor. The magnetometer sensitivity is currently equal to 3.5fT∕Hz1∕2 at 10Hz, similar to superconducting quantum interference device magnetoencephalography systems.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380574095353867906","@type":"Researcher","foaf:name":[{"@value":"H. Xia"}],"jpcoar:affiliationName":[{"@value":"Princeton University Department of Physics, , Princeton, New Jersey 08544"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574095353867904","@type":"Researcher","foaf:name":[{"@value":"A. Ben-Amar Baranga"}],"jpcoar:affiliationName":[{"@value":"Princeton University Department of Physics, , Princeton, New Jersey 08544"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574095353867905","@type":"Researcher","foaf:name":[{"@value":"D. Hoffman"}],"jpcoar:affiliationName":[{"@value":"Princeton University Department of Physics, , Princeton, New Jersey 08544"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574095353867907","@type":"Researcher","foaf:name":[{"@value":"M. V. 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