NEUROMAGNETIC SQUID MEASUREMENTS IN A HELMET-TYPE SUPERCONDUCTING MAGNETIC SHIELD OF BSCCO

被引：19

作者：

Ohta, H. ^{[1
]}

Koike, A. ^{[2
]}

Hoshino, K. ^{[2
]}

Kotaka, H. ^{[2
]}

Sudoh, E. ^{[2
]}

Kato, K. ^{[2
]}

Takahara, H. ^{[2
]}

Uchikawa, Y. ^{[3
]}

Shinada, K. ^{[4
]}

Takahata, M. ^{[4
]}

Yamada, Y. ^{[4
]}

Matsui, T. ^{[5
]}

机构：

[1] RIKEN, Inst Phys & Chem Res, Hirosawa 2-1, Wako, Saitama 35101, Japan

[2] Mitsui Min & Smelting Co Ltd, Corp R&D Ctr, Haraichi 1333-2, Ageo, Saitama 362, Japan

[3] Tokyo Denki Univ, Hatoyama, Saitama 35003, Japan

[4] Shimadzu Corp, Keihanna Res Lab, Seika, Kyoto 61902, Japan

[5] Minist Posts & Telecommun, Commun Res Lab, Nukuikitamachi 4-2-1, Koganei, Tokyo 184, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 01期

关键词：

D O I：

10.1109/77.233577

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A SQUID magnetometer has successfully detected magnetic fields emitted from a human brain in a helmet-size superconducting magnetic shield of high-T-c superconductor Bi-Sr-Ca-Cu-O-x. The sensitivities of the rf-SQUID and the dc-SQUID of Quasi-Planar Josephson junctions - superconducting weak links are 20 fT/root Hz and 4.8 fT/root Hz respectively. The magnetic shield can reduce a magnetic field to - 120 dB or 10(-6) even at as low a frequency as 0.2 Hz. We have detected somatosensory evoked magnetic fields stimulating the tibial nerves of the patient by current pulses.

引用

页码：1953 / 1956

页数：4

共 29 条

[1] Neuromagnetic SQUID measurement in a superconducting magnetic shield
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Aono, M
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Uchikawa, Y
Kobayashi, K
Tanabe, K
Takeuchi, S
Narasaki, K
Tsunematsu, S
Koyabu, Y
Kamekawa, Y
Nakayama, K
Koike, TS
Hoshino, K
Kotaka, H
Sudoh, E
Takahara, H
Yoshida, S
Shinada, K
Takahata, M
Yamada, Y
Kamijo, K
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1999, 9 (02) : 4073 - 4076
[2] Propagation of the shock wave through the magnetic helmet-type region
Wei, FS
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JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY, 1996, 48 (03): : 273 - 277
[3] Superconducting magnetic shield for high-Tc squid
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[5] A whole-head SQUID system in a superconducting magnetic shield
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IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2007, 17 (02) : 730 - 733
[6] Whole-head SQUID system in a superconducting magnetic shield
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[7] 3D-printed helmet-type neuro-navigation approach (I-Helmet) for transcranial magnetic stimulation
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[8] A 64-channel whole-head SQUID system in a superconducting magnetic shield
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Matsui, T
Aono, M
Uchikawa, Y
Kobayashi, K
Tanabe, K
Takeuchi, S
Narasaki, K
Tsunematsu, S
Koyabu, Y
Kamekawa, Y
Nakayama, K
Shimizu, T
Koike, J
Hoshino, K
Kotaka, H
Sudoh, E
Takahara, H
Yoshida, Y
Shinada, K
Takahata, M
Yamada, Y
Kamijo, K
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1999, 12 (11): : 762 - 765
[9] Mobile whole-head SQUID system of SNS junctions in a superconducting magnetic shield
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[10] 64-channel whole-head SQUID system in a superconducting magnetic shield
Ohta, H.
Matsui, T.
Aono, M.
Uchikawa, Y.
Kobayashi, K.
Tanabe, K.
Takeuchi, S.
Narasaki, K.
Tsunematsu, S.
Koyabu, Y.
Kamekawa, Y.
Nakayama, K.
Shimizu, T.
Koike, J.
Hoshino, K.
Kotaka, H.
Sudoh, E.
Takahara, H.
Yoshida, Y.
Shinada, K.
Takahata, M.
Yamada, Y.
Kamijo, K.
Superconductor Science and Technology, 1999, 12 (11): : 762 - 765

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