Total ionization cross sections for Benzene, Furan and Tetrahydro furan on electron impact

Industrial society has increased human exposure to thousands of chemicals in the environment e.g. Benzene (C$_{6}$H$_{6})$, Furan (C$_{4}$H$_{4}$O) and Tetrahydrofuran (C$_{4}$H$_{8}$O). Of particular concern is the potential hazard of these chemicals to produce cancer. The molecules are thus biologically and industrially important. In this paper we have examined scattering of electrons (from threshold to 5 keV) from these targets and calculated the total ionization cross sections. We used complex optical potential formalism (SCOP) [1, 2] to calculate total inelastic cross section Q$_{inel}$. We have developed a method, Complex Scattering Potential -- ionization contribution (CSP-ic) to extract ionization cross sections Q$_{ion}$ from calculated Q$_{inel}$. \newline \textbf{Ref. }[1] M.Vinodkumar, K.N.Joshipura, C.G.Limbachiya {\&} B.K.Antony, Eur. J. Phys. D. \textbf{37} (2006) 67 \newline [2] M.Vinodkumar, K.N.Joshipura, C.G.Limbachiya {\&} B.K.Antony, Phys. Rev A \textbf{74 }(2006) 022721