KX-ray production cross sections for heavy target elements and14N,40Ar projectiles above the coulomb barrier

KX-ray production cross sections have been measured for beams of¹⁴N at 92, 103, 115 and 180 MeV and⁴⁰Ar at 180 and 300 MeV on targets with atomic numbers ranging from 40 to 90. We find that the measured values can be well reproduced with a plane wave Born calculation, provided that corrections for the Coulomb deflection of the projectile, the increased binding energy of theK-shell electron and relativistic effects of theK-shell wave function are taken properly into account.