Abstract
We describe tests of the use of a multilayer high-Tc DC SQUID magnetometer for magnetoencephalography (MEG) and compare our measurements with results obtained using a low-Tc SQUID sensor. The integration of bias reversal readout electronics for high-Tc DC SQUID magnetometry into a commercial MEG data acquisition system is demonstrated. Results of measurements performed on a saline-filled head phantom are shown and the detection of an auditory evoked magnetic response of the human cortex elicited by a stimulus is illustrated. Future modifications of high-TcDC SQUID sensors for applications in MEG, in order to reach a resolution of 1 fT/VHz at 77.5 K over a wide frequency band, are outlined.
Original language | English |
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Title of host publication | Physics Procedia |
Subtitle of host publication | Superconductivity Centennial Conference |
Publisher | Elsevier |
Pages | 66-71 |
Number of pages | 6 |
Volume | 36 |
DOIs | |
Publication status | Published - 2012 |
Externally published | Yes |
Event | Superconductivity Centennial Conference 2011 - The Hague, Netherlands Duration: 18 Sept 2011 → 23 Sept 2011 https://www-sciencedirect-com.ezproxy.lib.monash.edu.au/journal/physics-procedia/vol/36/suppl/C |
Conference
Conference | Superconductivity Centennial Conference 2011 |
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Abbreviated title | SCC-2011 |
Country/Territory | Netherlands |
City | The Hague |
Period | 18/09/11 → 23/09/11 |
Internet address |
Keywords
- High-Tsuperconducting heterostructures
- Magnetoencephalography
- Magnetometer
- Quantum interferometers
- Squid