Monolithic flux transformer coupled high-Tc dc SQUID magnetometers

H. Hilgenkamp; G.C.S. Brons; S. Hoogeveen; J. Flokstra; H. Rogalla

doi:10.1109/77.403054

Monolithic flux transformer coupled high-Tc dc SQUID magnetometers

H. Hilgenkamp, G.C.S. Brons, S. Hoogeveen, J. Flokstra, H. Rogalla

Faculty of Science and Technology

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

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Abstract

YBa/sub 2/Cu/sub 3/O/sub 7-x/ based monolithic flux transformer-coupled high-T/sub c/ DC SQUID magnetometers operating up to 73 K have been realized. The devices are characterized by high values of the modulation voltage, up to 32 /spl mu/V at 40 K. A minimal white noise level of 0.10 pT//spl radic/Hz was obtained above 200 Hz, and 0.64 pT//spl radic/Hz at 1 Hz and 55 K. The temperature dependence of the modulation voltage, the effective sensing area and the field sensitivity are discussed. Model-calculations have been performed to investigate high frequency resonances in the washer-input coil structure. Methods for damping are considered.

Original language	English
Pages (from-to)	2338-2341
Number of pages	4
Journal	IEEE transactions on applied superconductivity
Volume	5
Issue number	5
DOIs	https://doi.org/10.1109/77.403054
Publication status	Published - 1995

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title = "Monolithic flux transformer coupled high-Tc dc SQUID magnetometers",

abstract = "YBa/sub 2/Cu/sub 3/O/sub 7-x/ based monolithic flux transformer-coupled high-T/sub c/ DC SQUID magnetometers operating up to 73 K have been realized. The devices are characterized by high values of the modulation voltage, up to 32 /spl mu/V at 40 K. A minimal white noise level of 0.10 pT//spl radic/Hz was obtained above 200 Hz, and 0.64 pT//spl radic/Hz at 1 Hz and 55 K. The temperature dependence of the modulation voltage, the effective sensing area and the field sensitivity are discussed. Model-calculations have been performed to investigate high frequency resonances in the washer-input coil structure. Methods for damping are considered.",

author = "H. Hilgenkamp and G.C.S. Brons and S. Hoogeveen and J. Flokstra and H. Rogalla",

year = "1995",

doi = "10.1109/77.403054",

language = "English",

volume = "5",

pages = "2338--2341",

journal = "IEEE transactions on applied superconductivity",

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T1 - Monolithic flux transformer coupled high-Tc dc SQUID magnetometers

AU - Hilgenkamp, H.

AU - Brons, G.C.S.

AU - Hoogeveen, S.

AU - Flokstra, J.

AU - Rogalla, H.

PY - 1995

Y1 - 1995

N2 - YBa/sub 2/Cu/sub 3/O/sub 7-x/ based monolithic flux transformer-coupled high-T/sub c/ DC SQUID magnetometers operating up to 73 K have been realized. The devices are characterized by high values of the modulation voltage, up to 32 /spl mu/V at 40 K. A minimal white noise level of 0.10 pT//spl radic/Hz was obtained above 200 Hz, and 0.64 pT//spl radic/Hz at 1 Hz and 55 K. The temperature dependence of the modulation voltage, the effective sensing area and the field sensitivity are discussed. Model-calculations have been performed to investigate high frequency resonances in the washer-input coil structure. Methods for damping are considered.

AB - YBa/sub 2/Cu/sub 3/O/sub 7-x/ based monolithic flux transformer-coupled high-T/sub c/ DC SQUID magnetometers operating up to 73 K have been realized. The devices are characterized by high values of the modulation voltage, up to 32 /spl mu/V at 40 K. A minimal white noise level of 0.10 pT//spl radic/Hz was obtained above 200 Hz, and 0.64 pT//spl radic/Hz at 1 Hz and 55 K. The temperature dependence of the modulation voltage, the effective sensing area and the field sensitivity are discussed. Model-calculations have been performed to investigate high frequency resonances in the washer-input coil structure. Methods for damping are considered.

U2 - 10.1109/77.403054

DO - 10.1109/77.403054

M3 - Article

SN - 1051-8223

VL - 5

SP - 2338

EP - 2341

JO - IEEE transactions on applied superconductivity

JF - IEEE transactions on applied superconductivity

IS - 5

ER -

Monolithic flux transformer coupled high-Tc dc SQUID magnetometers

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