Stopping powers of ions at 1 MeV per nucleon

The energy loss of Be-9, B-11, C-12, N-14, O-16, F-19 and N-20, ions at 1 MeV per nucleon in C, Al, Ni, CH2 (polyethylene) and PVC (polyvynilchloride) have been measured at the Louvain-la-Neuve cyclotron facility. Stopping powers are given relative to the one for 5.486 MeV He-4 ions with an uncertainty of at most 1%. Absolute stopping powers are also provided. We compare our results with previous experimental data and with semi-empirical models. (C) 2000 Elsevier Science B.V. All rights reserved