Multiple ionization of Ar by alpha particles

29th International Conference on Photonic, Electronic, and Atomic Collisions

Montanan, C.C.^1 ; Miraglia, J.E.^1

Instituto de Astronomía y Física Del Espacio, Consejo Nacional de Investigaciones Cientificas y Técnicas, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires

C1428EGA, Argentina^1

关键词: Branching ratio;    Continuum distorted wave-eikonal initial state;    Double ionization;    Impact energy;    Inner-shell ionization;    K and L shells;    Multiple ionization;    Proton impact;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/2/022010/pdf
DOI  :  10.1088/1742-6596/635/2/022010

来源: IOP

【 摘 要 】

We present theoretical results on multiple ionization of Ar by He2+by employing the continuum distorted-wave eikonal initial state together with photoionization branching ratios to include Auger-type contributions. We also analyze the inner-shell ionization cross sections (K and L-shells of Ar). The high energy experimental data is correctly described, showing differences with proton impact tendency in the post-collisional region. At intermediate impact energies (direct ionization region) the single and double ionization are described rather well, but we note certain overestimation for higher final charge states.