| Autor: |
M. Tillotson, P. Spear, B. Taylor, C. Hunter, G. Haid, C. Schroyen, T. Cheung, W.W. Sutherling, J. Vrba, E. Reichl, G. Anderson, I. Sekachev, A.A. Fife, S. Govorkov, K. Betts, J. McKay, S. E. Robinson, P.R. Kubik, S. Lee, Douglas Cheyne, V. Haid, M.B. Burbank |
| Rok vydání: |
1999 |
| Předmět: |
|
| Zdroj: |
IEEE Transactions on Appiled Superconductivity. 9:4063-4068 |
| ISSN: |
1051-8223 |
| Popis: |
This paper will describe features and performance of low-T/sub c/ whole-cortex MEG systems which utilise synthetic gradiometers to achieve a high level of environmental noise cancellation. The near field MEG sensitivities achieved through use of synthetic gradiometers typically range from 3 to 7 fT//spl radic/Hz above 1 Hz in moderately shielded rooms and less than 10 fT//spl radic/Hz above a few Hz in open environments. This performance has been observed for fixed vertical and also adjustable MEG systems which can tilt between vertical and horizontal orientations. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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