Research and some applications of high-Tc SQUIDS

H. C. Yang, Shu Yu Wang, Chin Hao Chen, J. T. Jeng, Jau Han Chen, H. E. Horng

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In the work, we studied the noise characteristics of electronic gradiometers in unshielded environments. In the off-axis electronic gradiometers for biomagnetic measurements, we optimized low frequency noise and performed two-dimensional magnetic mapping of magnetic signal from human heart. The measured magnetocardiography (MCG) signal was averaged according to the simultaneously recorded electrocardiography signal to further enhance the signal-to-noise ratio. The off-axis configuration in our gradiometer system offers the flexibility for multichannel SQUID-based MCG applications. In the study of the SQUID microscope for circuit detection in unshielded environment, we fabricated SQUIDs, considered the design of cryostat, and used the lock-in technique to examine the circuit board. We also examined the magnetic field pattern from the magnetized magnetic thin film.

Original languageEnglish
Pages (from-to)509-520
Number of pages12
JournalJournal of Low Temperature Physics
Volume131
Issue number3-4
DOIs
Publication statusPublished - 2003 May 1

Fingerprint

gradiometers
SQUIDs
Magnetocardiography
magnetocardiography
electrocardiography
Magnetic thin films
magnetic signals
Cryostats
Networks (circuits)
circuit boards
cryostats
Electrocardiography
electronics
Signal to noise ratio
flexibility
Microscopes
signal to noise ratios
microscopes
Magnetic fields
low frequencies

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Yang, H. C., Wang, S. Y., Chen, C. H., Jeng, J. T., Chen, J. H., & Horng, H. E. (2003). Research and some applications of high-Tc SQUIDS. Journal of Low Temperature Physics, 131(3-4), 509-520. https://doi.org/10.1023/A:1022903320064

Research and some applications of high-Tc SQUIDS. / Yang, H. C.; Wang, Shu Yu; Chen, Chin Hao; Jeng, J. T.; Chen, Jau Han; Horng, H. E.

In: Journal of Low Temperature Physics, Vol. 131, No. 3-4, 01.05.2003, p. 509-520.

Research output: Contribution to journalArticle

Yang, HC, Wang, SY, Chen, CH, Jeng, JT, Chen, JH & Horng, HE 2003, 'Research and some applications of high-Tc SQUIDS', Journal of Low Temperature Physics, vol. 131, no. 3-4, pp. 509-520. https://doi.org/10.1023/A:1022903320064
Yang, H. C. ; Wang, Shu Yu ; Chen, Chin Hao ; Jeng, J. T. ; Chen, Jau Han ; Horng, H. E. / Research and some applications of high-Tc SQUIDS. In: Journal of Low Temperature Physics. 2003 ; Vol. 131, No. 3-4. pp. 509-520.
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