Abstract
In the present investigation, the plane-wave Born approximation was employed to calculate the total ionization cross sections by electron impact of methanol, ethanol and 1-propanol from the threshold of ionization to 10 MeV. This method requires continuum generalized oscillator strengths (CGOSs). The two different semi-phenomenological expressions of CGOS, given by Mayol and Salvat and Weizsacker and Williams, along with approximated form of the continuum optical oscillator strength (COOS) by Khare et al. were used. Furthermore, the average of the above two CGOSs was also used. The calculated ionization cross sections were compared to the available previous theoretical results and experimental data. Out of three CGOSs, the present results with the average CGOS were found in good agreement with the available experimental results for all the considered molecules. Collision parameters CRP were also calculated from 0.1 to 100 MeV and the calculations were found to be in excellent agreement with the experimental results of Reike and Prepejchal.
Highlights
The total ionization cross sections of organic and inorganic molecules have importance in many applications such as plasma modelling, astrophysics, atmospheric science and biological science [1,2,3].The interaction of alcohols with electrons is a subject of interest because they are used as fuels which replace the traditional fossil fuels
Plasma modelling is required to make the theoretical model of car engines and the ionization cross sections may be used as an input parameter [4,5,6]
The cross cross sections in excellent agreement withethanol the experimental results The measured by ionization sections are of three molecules—methanol, and 1-propanol
Summary
The total ionization cross sections of organic and inorganic molecules have importance in many applications such as plasma modelling, astrophysics, atmospheric science and biological science [1,2,3].The interaction of alcohols with electrons is a subject of interest because they are used as fuels which replace the traditional fossil fuels. Rieke and Prepejchal [15] measured the total ionization cross sections of a number of molecules by electron impact in the energy range 0.1 and 2.7 MeV. The cross sections σ0 TP (Ave.) are in good agreement with the experimental results measured by Rejoub et al [11]
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