Stopping power of Mylar for heavy ions up to copper

The stopping powers of Mylar for several heavy ions covering Z = 11 to 29 i n the energy range similar to 0.3 to 2.3 MeV/n have been measured using the elastic recoil detection technique and twin detector system. The technique provided a unique method to generate a variety of variable energy ion spec ies utilizing a fixed energy 140 MeV Ag13+ primary beam from the Pelletron accelerator facility at Nuclear Science Center, New Delhi, India. Most of t hese measurements are new. The experimentally measured stopping power value s have been compared with those calculated using LSS theory, Ziegler et al. formulation and Northcliffe and Schilling tabulations. Merits and demerits of these formulations are highlighted. Stopping power calculations using t he Hubert et al. formulation have been extended successfully beyond its rec ommended range of validity, i.e. 2.5-500 MeV/n down to energies as low as 0 .5 MeV/n. (C) 2000 Elsevier Science B.V. All rights reserved.