Performance of HTS SQUID coupled to cooled-Cu/superconductor pickup coil

K. Enpuku; Y. Tsuji; S. Hirakawa; M. Matsuo; T. Yoshida

doi:10.1016/j.physc.2010.05.151

Performance of HTS SQUID coupled to cooled-Cu/superconductor pickup coil

K. Enpuku, Y. Tsuji, S. Hirakawa, M. Matsuo, T. Yoshida

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

We studied the performance of a magnetometer composed of a high T _c SQUID and a large pickup coil. For the pickup coil, we consider the coil made of a cooled Cu wire or an HTS superconductor tape. A magnetometer was designed for geophysical measurement using transient electromagnetic method. The theoretical field noise of the magnetometer was 0.2-1 pT/Hz^1/2 at f= 10 Hz, and 55 fT/Hz^1/2 for f> 200 Hz when the pickup coil of 100 mm in diameter and of N= 50 turns was used. Preliminary experimental results using the pickup coil made of the HTS Bi-tape reasonably agreed with the theoretical prediction.

Original language	English
Pages (from-to)	1511-1514
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	470
Issue number	20
DOIs	https://doi.org/10.1016/j.physc.2010.05.151
Publication status	Published - Nov 1 2010

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2010.05.151

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abstract = "We studied the performance of a magnetometer composed of a high T c SQUID and a large pickup coil. For the pickup coil, we consider the coil made of a cooled Cu wire or an HTS superconductor tape. A magnetometer was designed for geophysical measurement using transient electromagnetic method. The theoretical field noise of the magnetometer was 0.2-1 pT/Hz1/2 at f= 10 Hz, and 55 fT/Hz1/2 for f> 200 Hz when the pickup coil of 100 mm in diameter and of N= 50 turns was used. Preliminary experimental results using the pickup coil made of the HTS Bi-tape reasonably agreed with the theoretical prediction.",

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AU - Enpuku, K.

AU - Tsuji, Y.

AU - Hirakawa, S.

AU - Matsuo, M.

AU - Yoshida, T.

PY - 2010/11/1

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AB - We studied the performance of a magnetometer composed of a high T c SQUID and a large pickup coil. For the pickup coil, we consider the coil made of a cooled Cu wire or an HTS superconductor tape. A magnetometer was designed for geophysical measurement using transient electromagnetic method. The theoretical field noise of the magnetometer was 0.2-1 pT/Hz1/2 at f= 10 Hz, and 55 fT/Hz1/2 for f> 200 Hz when the pickup coil of 100 mm in diameter and of N= 50 turns was used. Preliminary experimental results using the pickup coil made of the HTS Bi-tape reasonably agreed with the theoretical prediction.

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Performance of HTS SQUID coupled to cooled-Cu/superconductor pickup coil

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