Angular distribution of the 16C+208 Pb inelastic scattering populating the first 2+ state in 16C. The interference effect between Coulomb and nuclear excitation appears in the dip of the differential cross sections at around 3 degrees. The Coulomb contribution is considerably smaller than the nuclear contribution. This analysis shows an anomalous feature of the 2+ excitation: The excitation is mostly due to the neutrons, and protons do not contribute. In order to detect weak gamma rays efficiently, the detector system shown in the photograph was developed.