We have measured the angular distributions for the elastic and inelastic scattering of
4He from 11B in the isochronous cyclotron U-150 M INP RK. The extracted α-particles beam
has been accelerated to energy 29 MeV and then directed to 11B target. The experimental
results were analyzed within the framework of both the optical model using different complex
potential and the double folding potential obtained with different density-dependent NN
interactions which give the corresponding values of the nuclear incompressibility K in the
Hartree-Fock calculation of nuclear matter.
