Theoretical calculations of diamond damage by π+/π− mesons in the Δ33 resonance energy range

The non-ionising energy loss and the concentration of primary radiation defects induced by charged pions, in the energy range 50–500 MeV, in bulk diamond have been calculated in order to characterise its radiation resistance. chanisms by which the pion imparts energy to the diamond lattice have been analysed and their contribution has been evaluated starting from the nuclear data on pion carbon interaction. The energy partition of the primary recoil nuclei between ionisation and displacements has been calculated in the frame of the Lindhard theory. been found that diamond, front the point of view of concentration of primary defects, is approximately one order of magnitude harder than silicon in pion fields, in the energy range of the Δ33 resonance, and about two orders of magnitude harder than GaAs in the same energy region.