Cross sections of X-ray production induced on Ti, Fe, Zn, Nb and Ta by O, Cl, Cu and Br ions with energies between 4 MeV and 40 MeV

摘要

Differential cross section of X-ray production induced by O, Cl, Cu and Brions with energies between 4 MeV and 40 MeV have been measured for thin targetsof Ti, Fe, Zn, Nb and Ta in a direct way. A fully characterized silicon driftdiode was used as X-rays detector. Beam currents have been measured by a systemof two Faraday cups. Corrections for target thickness effects have been appliedto the raw data. Experimental cross sections are compared both with theory andwith previously published results. Experimental results from other authors arein reasonable agreement with ours over a wide energy range. Theory producesconsistent results in the case of oxygen ions but gives cross sections evenorders of magnitude below the experimental ones for heavier ions (ECPSSR-UA) orcontrasting results (PWBA) depending on the ion-target combination.