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

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:410

Article

Emilio Prieto, Jose^1,2,3  Galan, Patricia¹  Zucchiatti, Alessandro⁴ 

[1] Univ Autonoma Madrid, CMAM, E-28049 Madrid, Spain

[2] Univ Autonoma Madrid, Dept Fis Mat Condensada, IFIMAC, E-28049 Madrid, Spain

[3] Univ Autonoma Madrid, Inst Nicolas Cabrera, E-28049 Madrid, Spain

[4] Univ Autonoma Madrid, E-28049 Madrid, Spain

关键词: Heavy ion PIXE;    X-ray cross sections;    Ti;    Fe;    Zn;    Ta;   

DOI  :  10.1016/j.nimb.2017.08.008

来源: Elsevier

【 摘 要 】

Differential cross section of X-ray production induced by O, Cl, Cu and Br ions with energies between 4 MeV and 40 MeV have been measured for thin targets of Ti, Fe, Zn, Nb and Ta in a direct way. A fully characterized silicon drift diode was used as X-rays detector. Beam currents have been measured by a system of two Faraday cups. Corrections for target thickness effects have been applied to the raw data. Experimental cross sections are compared both with theory and with previously published results. Experimental results from other authors are in reasonable agreement with ours over a wide energy range. Theory produces consistent results in the case of oxygen ions but gives cross sections even orders of magnitude below the experimental ones for heavier ions (ECPSSR-UA) or contrasting results (PWBA) depending on the ion-target combination. (C) 2017 Elsevier B.V. All rights reserved.

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