![](https://coimages.sciencemuseumgroup.org.uk/18/788/large_thumbnail_l2000_4128__0002_.jpg)
Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
1987
1994
1994
1990-1991
2000-100 BCE
1988
1989
1993
1992
2000-100
1993
1987
1990
1989
1990-1991
1994
1989
1988-1993
1994
1990s
1990-96
1989
1990
1989
1994
1839 (original); circa 1988 (replica)
1992
1988
4000-2001 BCE
1993
1992
1990
1988
1987
1992-1994
1994
1994
1994
1988-1992
1988
1992
1988
1988
1990
1987
1992
1994
1994
1994