Photo-dissociation processes of greenhouse gases CHF3, CF4, and SF6

点击翻译按钮获取中文摘要

Multiply-charged ions are often produced by inner-shell ionization, and they generally dissociate into some fragment ions by Coulomb explosion. We have investigated the dissociation processes of inner-shell ionized CHF3, CF4, and SF6 with a time-of-flight mass spectrometer and a two-dimensional position-sensitive detector. It is concluded that the successive dissociation including the auto-ionization of the fragment ion is dominant in the Coulomb explosion of CHF3+++, whereas the simultaneous dissociation is dominant in the Coulomb explosion of CF4+++.