The inclusive cross sections of protons emitted with energies from 60 to 145 MeV in the bombardment of 12 C by 640 MeV protons have been measured for seven laboratory angles from 105° to 160°. Under the same conditions proton spectra have been studied at 140° by using Be, Al, Cu and Pb targets. The behaviour of the structure function Eσ t −1 ·d σ /d 3 P at intermediate energies is discussed.
