Detection of brainstem auditory evoked magnetic fields using a SQUID magnetometer with a variable baseline

Keiji Iramina, Shinichi Uchizono, Shoogo Ueno

研究成果: ジャーナルへの寄稿記事

抄録

This study focuses on the detection of ABR magnetic fields using a SQUID magnetometer with a variable baseline. We developed a highly sensitive dc-SQUID system. The SQUID magnetometer has a first-order gradiometer with a variable baseline, i.e., the distance between two co-axial coils. ABR signals, which are generated from a brainstem in a deep part of the brain, are very weak fields. We measured the ABR magnetic fields using three gradiometers which have different baselines: 30 mm, 50 mm and 80 mm. In this experiment, we were able to obtain the best signal-to-noise ratio using the gradiometer with the 50 mm baseline.

元の言語英語
ページ(範囲)175-176
ページ数2
ジャーナルUnknown Journal
16
発行部数pt 1
出版物ステータス出版済み - 1994

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SQUIDs
Magnetometers
magnetometer
Magnetic fields
magnetic field
signal-to-noise ratio
brain
Brain
Signal to noise ratio
experiment
detection
Experiments

All Science Journal Classification (ASJC) codes

  • Bioengineering

これを引用

Detection of brainstem auditory evoked magnetic fields using a SQUID magnetometer with a variable baseline. / Iramina, Keiji; Uchizono, Shinichi; Ueno, Shoogo.

:: Unknown Journal, 巻 16, 番号 pt 1, 1994, p. 175-176.

研究成果: ジャーナルへの寄稿記事

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