Dissociation Dynamics of Doubly Ionized Water Using 57 eV Photons

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

Reedy, D.^1 ; Gaire, B.^2 ; Williams, J.^3 ; Weller, M.^2,3 ; Gatton, A.^1,2 ; Bauer, T.^3 ; Henrichs, K.^3 ; Burzynski, P.^3 ; Sartor, J.^1 ; Berry, B.^4 ; Doerner, R.^3 ; Weber, Th^2 ; Landers, A.L.^1

Department of Physics, Auburn University, Auburna

AL, United States^1

Lawrence Berkeley National Lab, Berkeleya

CA, United States^2

Experimental Atomic Physics Group, Goethe-Universität Frankfurt, Frankfurt, Germany^3

Department of Physics, Kansas State University, Manhattan

KS, United States^4

关键词: Bond angle;    Cold target recoil ion momentum spectroscopies;    Dissociation dynamics;    Double photoionization;    Ion fragments;    Kinetic energy release distribution;    Photo-electron emission;    Photoionization process;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/11/112141/pdf
DOI  :  10.1088/1742-6596/635/11/112141

来源: IOP

【 摘 要 】

We have measured the photoelectron emission and dissociation of water in the gas phase following double photoionization by a 57 eV photon. The momenta of the resulting dication ion fragments and electrons were measured in coincidence with Cold Target Recoil Ion Momentum Spectroscopy (COLTRIMS). The dissociation dynamics following the photoionization process show a marked dependence on both bond angle and kinetic energy release distribution among the fragments.