KASTURI LAL BALUJA
Articles written in Pramana – Journal of Physics
Volume 95 All articles Published: 9 October 2021 Article ID 0167 Research Article
The electron scatterings from isovalent molecules like O$_3$, S$_3$, OSO and SOS are studied using
single centre expansion (SCE) approximation. The elastic differential cross-sections, integral and
momentum transfer cross-sections are computed for these targets from ionisation threshold to 5 keV.
The molecular wave functions of the targets were obtained from the multicentre expansion of the Gaussian-type
orbitals within the single determinant Hartree–Fock self-consistent field scheme. The multipole expansion of the
target at the centre of mass includes the dipole and quadrupole terms. The target interactions are modelled within the
local potential approximation and consist of static, correlation-polarisation and exchange effects. The results are in good
agreement with the available experimental and theoretical results. The SCE results match smoothly near the ionisation threshold
Volume 97 All articles Published: 7 August 2023 Article ID 0120 Research Article
The partial ionisation cross-sections are reported for cations formed due to electron-impact dissociative ionisation of ethanol by invoking a variant of binary-encounter-Bethe (BEB) model. Being an important molecule in astrophysical and combustion plasma, the cross-sections are required to model this process over an extensive energy range. These are the only theoretical calculations to validate the experimental data. The approach followed is extremely simple and appears effective to estimate the cross-section data for any molecule or its cation. The electron ionisation mass spectrometry data are indispensable in the modelling of electron–molecule interactions. The work is important in several fields of pure and applied physics.
Volume 97, 2023
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