Ionic fragmentation of CO and H2O under impact of 10 keV electrons: kinetic energy release distributions

28th International Conference on Photonic, Electronic and Atomic Collisions

Singh, Raj^1 ; Bhatt, Pragya^1 ; Yadav, Namita^1 ; Shanker, R.^1

Atomic Physics Laboratory, Department of Physics, Banaras Hindu University, Varanasi

221005, India^1

关键词: Coulomb explosion;    Coulomb explosion models;    Dissociative ionization;    Ionic fragmentation;    Kinetic energy release distribution;    Molecular ions;    Position-Sensitive Detectors;    Time-of-flight mass spectrometers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/5/052034/pdf
DOI  :  10.1088/1742-6596/488/5/052034

来源: IOP

【 摘 要 】

Dissociative ionization of COq+(q=2-4) and H2Oq+(q=2-3) molecular ions produced from the collisions of CO and H2O with 10 keV electrons is studied using time-of-flight mass spectrometer and position sensitive detector with multi-hit ability, respectively. The kinetic energy release distributions for these channels are obtained. We found that a pure Coulomb explosion model is insufficient to explain the observed kinetic release distributions for the Coulomb explosion channels. A detail of this study is given in references [3, 4].