Abstract

The Au atomic Mα characteristic Xray spectrum has been measured for the slow highly charged ions Arq+ (q= 7—14) impacting on Au surface. The result shows that as long as the charge state of projectile is higher(q=11), the characteristic Xrays of heavy atomic can be effectively excited even though the ionic beam is very weak(nA magnitude), and the single ionic Xray yield is in the order of 10-8 and increases with potential energies of projectiles.

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