Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
1989
1993
1990-1991
1993
2000-100 BCE
1990
1990-1991
1989
1989
1992
2000-100
1990s
1989
1990-96
1989
1992
1990
4000-2001 BCE
1993
1990
1990
1992
1989
1992
1991
1991
1992
1991
1990
1990
1990
1992
c.1993
circa 1993
c.1993
c.1993
c.1993
c.1993
c.1993
c.1993
1993
1989
circa 1990
1990-1993 (spare); 1995 (original launched)
1993
1989
1992
1992
1991