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Title: Development of an optically pumped atomic magnetometer using a K-Rb hybrid cell and its application to magnetocardiography
Authors: Ito, Yosuke  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0003-3245-3840 (unconfirmed)
Ohnishi, Hiroyuki
Kamada, Keigo
Kobayashi, Tetsuo  kyouindb  KAKEN_id
Issue Date: 31-Jul-2012
Publisher: AIP Publishing
Journal title: AIP Advances
Volume: 2
Issue: 3
Thesis number: 032127
Abstract: We have developed an optically pumped atomic magnetometer using a hybrid cell of K and Rb. The hybrid optical pumping technique can apply dense alkali-metal vapor to the sensor head and leads to high signal intensity. We use dense Rb vapor as probed atoms, and achieve a sensitivity of approximately 100 fTrms/Hz[1/2] around 10 Hz. In this case, the sensitivity is limited by the system noise, and the magnetic linewidth is narrower than that for direct Rb optical pumping. We demonstrated magnetocardiography using the magnetometer and obtained clear human magnetocardiograms.
Rights: © 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License.
URI: http://hdl.handle.net/2433/187943
DOI(Published Version): 10.1063/1.4742847
Appears in Collections:Journal Articles

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