Differential Measurements of Ionization and Excitation of H2 by 250 eV Positrons

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

De Lucio, O.G.^1 ; Dubois, R.D.^2

Instituto de Física, Universidad Nacional Autónoma de México, Apdo. Postal 20-364, México DF, Mexico^1

Dept of Physics, Missouri University of Science and Technology, Rolla

MO

65409, United States^2

关键词: Differential information;    Differential measurements;    Ejected electrons;    Electron detectors;    Molecular hydrogen;    Photon emissions;    Positron impacts;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/7/062015/pdf
DOI  :  10.1088/1742-6596/875/7/062015

来源: IOP

【 摘 要 】

Synopsis Ejected electron-recoil ion and scattered projectile-recoil ion coincidences are measured for 250 eV positron impact on molecular hydrogen. The electron detector is also sensitive to photon emission. Various combinations of these coincidence spectra are used to extract differential information about ionization and excitation of H2.