Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 2545-2548 |
| Number of pages | 4 |
| Journal | IEEE transactions on applied superconductivity |
| Volume | 7 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1997 |
| Event | 1996 Applied Superconductivity Conference, ASC 1996 - David L. Lawrence Convention Center, Pittsburgh, United States Duration: 25 Aug 1996 → 30 Aug 1996 |
Fingerprint
Cite this
}
Multichannel heart scanner based on high-Tc SQUIDs. / ter Brake, H.J.M.; Janssen, N.; Flokstra, J.; Veldhuis, D.; Rogalla, H.
In: IEEE transactions on applied superconductivity, Vol. 7, No. 2, 1997, p. 2545-2548.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Multichannel heart scanner based on high-Tc SQUIDs
AU - ter Brake, H.J.M.
AU - Janssen, N.
AU - Flokstra, J.
AU - Veldhuis, D.
AU - Rogalla, H.
PY - 1997
Y1 - 1997
N2 - A 7-channel magnetometer for magnetocardiography based on high-T c SQUIDs has been realized. This magnetometer is used for test experiments in the development of a multichannel high-Tc SQUID based heart-scanner for clinical applications. The intrinsic noise level of the channels in the 7-channel system is typically 120 fT/¿(Hz) down to 1 Hz. Magnetocardiograms were recorded inside a magnetically shielded room. Introductory experiments were performed on the suppression of noise by combining magnetometers to form planar gradiometers. The noise suppression that can be established appeared to be limited by the imbalance of the gradiometric configuration, which is roughly 2%. This relatively poor balance of the system is caused by inaccuracies in the transfer functions of the individual SQUID magnetometers, and by deviations from the planar geometry
AB - A 7-channel magnetometer for magnetocardiography based on high-T c SQUIDs has been realized. This magnetometer is used for test experiments in the development of a multichannel high-Tc SQUID based heart-scanner for clinical applications. The intrinsic noise level of the channels in the 7-channel system is typically 120 fT/¿(Hz) down to 1 Hz. Magnetocardiograms were recorded inside a magnetically shielded room. Introductory experiments were performed on the suppression of noise by combining magnetometers to form planar gradiometers. The noise suppression that can be established appeared to be limited by the imbalance of the gradiometric configuration, which is roughly 2%. This relatively poor balance of the system is caused by inaccuracies in the transfer functions of the individual SQUID magnetometers, and by deviations from the planar geometry
U2 - 10.1109/77.621758
DO - 10.1109/77.621758
M3 - Article
VL - 7
SP - 2545
EP - 2548
JO - IEEE transactions on applied superconductivity
JF - IEEE transactions on applied superconductivity
SN - 1051-8223
IS - 2
ER -