Electron impact ionization of 1-propanol

Abstract

This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.  Appearance energies and Wannier exponents for 16 formed cations were determined.  Theoretical BEB and IAM-SCAR and experimental total ionization cross sections are reported.

A Relativistic Complex Optical Potential Calculation for Electron–Beryllium Scattering: Recommended Cross Sections

“…Note that while that estimate is conservative, it is not unreasonable. Recent TICS measurements with the primary alcohols, [23][24][25] which are liquids at room temperature, reported uncertainties up to ;12%. As any measurements with beryllium would be a degree of difficulty more challenging, our 620% uncertainty estimate on our recommended TICS is highly plausible.…”

The Electron Impact Ionization Cross Sections of Methanol, Ethanol and 1-Propanol

“…The difference between the two maximum cross sections is very small. Except near the ionization threshold, the experimental data of Pires et al [14] lie between two curves, i.e., σ TPK & σ TP (Ave.). The cross sections σ TP are in excellent agreement with the experimental results measured by Hudson et al [9] up to E = 69 eV, but they under-estimate the experimental values by 14% at higher energies.…”

“…The above expression may be obtained by taking the average of Equations (12) and 13. Now we replace E by E in upper limit of integral of Equations (12)- (14) and in the expression of recoil energy, Q min , given by Equation 7. With these two modifications, we integrate the Equations (12)- (14) and obtain…”

“…Srivastava et al [13] investigated the total ionization cross section of methanol using the quadrupole mass spectrometer filter and relative flow technique with He gas as the reference gas for energies from 20 to 500 eV. Pires et al [14] also measured the total ionization cross sections by using a quadrupole mass spectrometer for 1-propanol. At relativistic energies, the theoretical calculations of the total ionization cross sections are also important to understanding the ionization process of molecules by electron impact.…”

“…Total ionization cross sections (TICS) for C 3 H 7 OH in A 2 , the solid line represents the present (Ave.) results, the dash line represents the theoretical results measured by Vinod kumar et al [8], the dash dot represents the theoretical results measured by Hudson et al [9] using DM formulism, the dot line represents the BEB calculations of Hudson et al [9], the dash dot dot line represents the present (Khare BEB), the short dash represents the present results. Filled triangles, filled squares, filled pentagons and open hexagonals are the experimental results of Djuric et al [11], Hudson et al [9] Rejoub et al [12] and Pires et al [14], respectively. Figure 1 shows a comparison of present cross sections with other previous theoretical results and experimental data for methanol.…”