�ber die Wirkungsquerschnitte einigern, n ?-Reaktionen f�r Neutronenenergien zwischen 12 und 19 MeV

Cross sections of somen, nα-reactions have been investigated in the energy range of the neutrons from 12 to 19.6 MeV by measuring the radioactivities produced. Neutrons of these energies were produced by bombarding a thin tritium-target with 3 MeV-Deuterons. In all cases considered the cross section increases rapidly with the neutron energy. In addition somen, 2n-reactions were studied in the same way; the results were compared with cross sections which were calculated according to the statistical theory.