Measuring lifetimes of Polycyclic Aromatic Hydrocarbon fragments

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

Wolf, M.^1 ; Alexander, J.D.^1 ; Stockett, M.H.^1 ; Giacomozzi, L.^1 ; De Ruette, N.^1 ; Schmidt, H.T.^1 ; Zettergren, H.^1 ; Cederquist, H.^1

Department of Physics, Stockholm University, AlbaNova University Center, Stockholm

SE-106 91, Sweden^1

关键词: Center-of-mass energies;    Charged fragments;    Ion beam traps;    Ion mass;    Reflectrons;    Secondary decays;    Time-of-flight mass spectrometers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/3/032067/pdf
DOI  :  10.1088/1742-6596/635/3/032067

来源: IOP

【 摘 要 】

We investigate collisions of Polycyclic Aromatic Hydrocarbon cations with noble gases at center-of- mass energies close to 100 eV and below. Charged fragments are stored in a new version of the electrostatic ion beam trap ConeTrap. After storage for different well-defined times we extract the ions and use a reflectron based time-of-flight mass spectrometer to analyse the ion mass distributions. This will give information on secondary decay channels and the lifetime of the initially trapped fragment.