Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
1989
1996
1996
1971
1996
1975
1996
1975-1985
1996
1997
1997
1996
1990-1998
1979
1996
1996
1968-1971
1993
1984
1997
1983
1997
1985
1984
1976
c.1998
1995
1995
1995
1987
circa 1969
1998
1973-1983
1968-1985
1995
1980
1970-1981
1970-1981
1996-1998
1973-1983
circa 1983
1986
1971
1990-1997
1970
1975
circa 1972
1994
1984; 1983