Ion-Beam Induced Reactions In Fe-Pvc Thin-Film Structures

Films of57Fe, 50–100 thick, were evaporated onto PVC substrates. Samples were irradiated with 48 McV Br8+ ions. Recoiling target atoms, ejected from the sample, were collected in a time of flight-energy detector telescope to monitor effects induced by the impinging Br ions. Conversion electron Mssbauer spectra were recorded before and after ion irradiation. Substantial radiation induced alterations were observed both in recoil and Mssbauer spectra.