Measurement of the interaction cross-section and related topics

Recent experimental results concerning interaction cross-sections (sigma(I)) are reviewed. The sigma(I) values were measured by a transmission method using the fragment separator at GSI. The sigma(I) values for B, C, N, O and F isotopes and the recently measured sigma(I) for Ar are presented. As related topics, an analysis by the recently developed Glauber model for a few-body system is introduced. By using this analysis, the effective density distributions for light neutron-rich nuclei can be deduced. The recently shown magic number N = 16 near to the neutron drip line is also discussed.