Anisotropic two-body dissociation by highly charged ion impact

30th International Conference on Photonic, Electronic, and Atomic Collisions

Rajput, Jyoti^1 ; Agnihotri, A.^2 ; Cassimi, A.^2 ; Fléchard, X.^3 ; Guillous, S.^2 ; Iskandar, W.^4 ; Méry, A.^2 ; Rangama, J.^2 ; Safvan, C.P.^5

Department of Physics and Astrophysics, University of Delhi, Delhi

110007, India^1

CIMAP, CEA-CNRS-ENSICAEN-UNICAEN, Normandie Université, BP5133, Caen Cedex 04

F-14050, France^2

Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, Caen

14000, France^3

Lawrence Berkley National Laboratory, Berkeley

CA

94720, United States^4

Inter-University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi

110067, India^5

关键词: Beam direction;    Fragment emission;    Highly charged ions;    Momentum vectors;    Neutral species;    Recoil ion momentum spectroscopy;    Slow highly charged ions;    Strong anisotropy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/11/102003/pdf
DOI  :  10.1088/1742-6596/875/11/102003

来源: IOP

【 摘 要 】

The angular distribution of fragment emission with respect to the incoming beam direction is measured. In case of two body breakup of di-cationic molecular ions, such as D2O2+and2H2+2, a strong anisotropy is observed when one of the fragments is an H+or D+. These molecular ions were produced by impact of slow highly charged ions on neutral species. The technique of recoil ion momentum spectroscopy was used to measure the complete momentum vectors of all fragments in coincidence.