Continuum X rays above the K lines of Sn were measured at 90° and 0° angle relative to the incident beam direction in coincidence with Cl projectiles scattered at yery large laboratory angles between 8° and 164°. By varying the isotope mass of the projectile ions (35 C1 and 37 C1) and of the target atoms (112 Sn and 1I8 Sn) the radiation at scattering angles >10° could be clearly identified as Bremsstrahlm.y from the elementary scattering process of the two nuclei. The intensity of the radiation emitted at 0° and 90° relative to the beam direction can be reasonably well described by a quantum mechanical calculation of nucleus-nucleus Bremsstrahlung by Reinhardt et al. [7] which includes the interference between dipole and quadrupole radiation amplitude.