Figure 2. Three 25 cm field of view curves best fit normalized to the FAXIL F25 (upper curve) versus detail diameter. 
=F25, FAXIL Data (F25, 1992); x =STB1, STB/7/82 New Systems Data (DOH, 1982); +=STB2, STB/7/82 Systems of age 5 years (DOH, 1982).
Figure 2. Three 25 cm field of view curves best fit normalized to the FAXIL F25 (upper curve) versus detail diameter. =F25, FAXIL Data (F25, 1992); x =STB1, STB/7/82 New Systems Data (DOH, 1982); +=STB2, STB/7/82 Systems of age 5 years (DOH, 1982).