HV = -1350,-1350,-850 V
Run # I Target Raster OS Raster Setting (Radius)
1979 2.5 C ON 13 5.7 mm
1980 12 C ON 13 5.7 mm
1981 12 C ON 13 2.0 mm
1982 12 C ON 13 0.5 mm
1983 5 C OFF 13
1984 5 C ON 13 3.0 mm
Now 3 mm raster setting gives a spot 0f 4 mm diameter
1985 15 He ON 13 3.0 mm
1986 15 He ON 1 3.0 mm