Signatures of Interatomic-Coulombic-Decay in electron-impact ionization of argon dimers

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

Pflüger, Thomas^1,2 ; Ren, Xueguang^1,2 ; Dorn, Alexander^2

Physikalisch-Technische Bundesanstalt, Bundesallee 100, Braunschweig

38116, Germany^1

Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, Heidelberg

69117, Germany^2

关键词: Dissociation mechanisms;    Electron energies;    Electron impact;    Electron impact-ionization;    Induced dissociation;    Interatomic Coulombic decay;    Kinetic energy release;    Projectile energy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/7/072011/pdf
DOI  :  10.1088/1742-6596/635/7/072011

来源: IOP

【 摘 要 】

We study electron-impact induced dissociation of small argon clusters at a projectile energy of 120 eV. Kinetic-energy-release (KER) spectra for the final charge states 2Ar+, Ar++ Ar2+and Ar2++ Ar+of the Ar2and Ar3parent species and electron energies have been measured together with angular distributions of fragment ions. They are used to identify dissociation mechanisms such as Interatomic-Coulombic-Decay (ICD).