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Double and Triple Differential Cross Sections for Single Ionization of Benzene by Electron Impact



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Lozano, Ana I. and Costa, Filipe and Ren, Xueguang and Dorn, Alexander and Álvarez, Lidia and Blanco Ramos, Francisco and Limão-Vieira, Paulo and García, Gustavo (2021) Double and Triple Differential Cross Sections for Single Ionization of Benzene by Electron Impact. International Journal of Molecular Sciences, 22 (9). ISSN 1422-0067

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Official URL: https://doi.org/10.3390/ijms22094601


Experimental results for the electron impact ionization of benzene, providing double (DDCS) and triple differential cross sections (TDCS) at the incident energy of 90 eV, measured with a multi-particle momentum spectrometer, are reported in this paper. The most intense ionization channel is assigned to the parent ion (C6H6+) formation. The DDCS values are presented for three different transferred energies, namely 30, 40 and 50 eV. The present TDCS are given for two fixed values of the ejected electron energy (E-2), at 5 and 10 eV, and an electron scattering angle (theta(1)) of 10 degrees. Different features related to the molecular orbitals of benzene from where the electron is extracted are observed. In addition, a semi-empirical formula to be used as the inelastic angular distribution function in electron transport simulations has been derived from the present DDCS result and compared with other expressions available in the literature.

Item Type:Article
Additional Information:

F.C. acknowledges the Radiation Biology and Biophysics Doctoral Training Programme (RaBBiT, PD/00193/2012); UCIBIO (UIDB/04378/2020) and together with P.L.V. and A.I.L. the Portuguese National Funding Agency FCT through the Research Grants CEFITEC (UIDB/00068/2020) and PTDC/FISAQM/31281/2017. L.A. thanks the local CAM government and MICIU, respectively, for their corresponding grants within the "Garantía Juvenil" programmes.

Uncontrolled Keywords:Low-energy-electron; Momentum spectroscopy; Screening corrections; Scattering; Dynamics; Spectra
Subjects:Sciences > Physics > Nuclear physics
ID Code:67216
Deposited On:28 Jul 2021 07:50
Last Modified:19 Aug 2021 07:05

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