Abstract
RATIONALE: Benzene (C 6H 6) is
industrially important aromatic molecule which used as a primary reagent
in pharmaceutical and petrochemical industries and on the other hand in
the preparation of polystyrene for plastic industries, styrene (C
8H 8) is used as monomer. This motivated
us to carry out the extensive study for the considered molecules.
METHODS: The single differential cross-sections and their
integral i.e. total ionization cross-sections for benzene and styrene
molecules have been calculated by employing modified Jain-Khare
semiempirical formulation. The ionization rate coefficient is calculated
by using Maxwell-Boltzmann distribution law of temperature/energy. To
confirm the consistency and reliability of the calculated ionization
Qion data and, to prove the reliability of the employed JK formulation
we used the empirical relationship reported by Lampe, Franklin and
field. RESULTS: The secondary electron energy dependent
differential cross sections at fix incident electron energies 100 and
200 eV and their integral cross-sections from ionization threshold to 5
keV have been calculated. The averaged secondary electron energy and the
rate coefficients in ionization threshold to 5 keV energy range are also
calculated and we found the linear relationship between Q
ion and (⍺/I) 1/2, which confirm the
consistency and reliability of the present data and applied JK
formulation. CONCLUSION: The present TICS are found to be in
good agreement with theoretical and experimental available data sets and
are significant for the pharmaceutical and petrochemical industries, the
planetary atmosphere, the plastic industries, and X-ray lithography
techniques in microelectronics and microfabrication. This encourages the
atomic and molecular communities for better outcomes.