©　2016,　Chinese　Academy　of　Sciences.　All　rights　reserved.The　X-ray　emissions　from　H1+　and　He2+　beams　impinging　on　Au　surface　are　measured.　The　results　show　that　the　yields　and　production　cross　sections　of　Mζ　and　Mα　of　target　atom　Au　increased　with　the　kinetic　energy　of　H1+　and　He2+.　The　measured　production　cross　sections　are　higher　than　the　theoretical　predictions　based　on　the　PWBA　approximation,　the　BEA　approximation　and　ECPSSR　theory.　The　measured　production　cross　sections　increased　trend　with　ionic　kinetic　energy　close　to　the　theoretical　predictions　based　on　the　PWBA.　The　fluorescence　yield　is　enhanced　dramatically　owing　to　multiple　vacancies　as　the　projectiles　approach　target　atoms.　In　the　low　projectile-energy　region　(E　＜1　MeV),　because　the　projectiles　velocities　are　nearly　the　M-shell　electronic　Bohr　velocity　of　the　high-Z　target　atom,　and　the　bound　of　target　atomic　nucleus　to　electron　decrease,　so　multiple　ionization　effects　easily　occur.　One　would　have　to　conclude　that　these　theories　clearly　fail　at　low　velocities　due　to　the　electrons　be　assumed　to　be　at　rest　in　the　early　stage　of　these　theories　were　constituted.