Energy loss measurements for the slowing down of Ag ions in Au, in the velocity range 1.6upsilon(0) < upsilon < 4.4upsilon(0), where upsilon(0) is the Bohr velocity, are presented. The measurements were performed using the Doppler shift technique and also with a new method, where a secondary beam of low velocity heavy ions is produced by elastic scattering of the accelerated beam. The results are compared to the SRIM2000 calculations (www.srim.org) and to recent measurements in this velocity region.