STOPPING POWER OF CARBON FOR SI, FE, NI AND CU IONS USING THE ERDA TECHNIQUE

We have been carrying out systematic random stopping power experiments in the low velocity region (v(0) to 5v(0), where v(0) is the Bohr vel ocity) using heavy ions (Z(1) = 8 to 29). The objective is to suppleme nt in a significant way the currently available scanty data in this re gion. In order to optimise the data collection for a variety of heavy ions, we have used our recently developed technique of adopting a twin detector in conjunction with Elastic Recoil Detection Analysis (ERDA) technique. In continuation, we now report energy losses of Si, Fe, Ni and Cu ions in carbon foil in the energy range 0.1-1.1 MeV/u. Here we are reporting experimental stopping power data for Ni ions in the vel ocity region of 0.1-0.6 MeV/u. Most of the experimental data have an e rror of around 6%. Comparison of the now available data have been made with existing theoretical and semiempirical models.