Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
1989
1996
1996
1996
1996
1996
1996
1996
1996
1993
1984
1983
1985
1984
1995
1995
1995
1987
1995
1980
circa 1983
1986
1994
1984; 1983
1985
1980-1989
1993
(1962); 1982
1985
1996
1996
1980-1989
1981-1990
1982
1985
1980
1990-1991
1986
1989
1985
1992
1994-1995
1987
1986
2000-100 BCE
1980-1990
1981
1990
1988