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Electron-scattering total cross sections for triatomic molecules: NO2 and H2O

Szmytkowski C, Mozejko P

Optica Applicata

2006

Vol. 36, nr 4

s. 543--550

Absolute total cross sections (TCSs) for electron scattering on nitrogen dioxide (NO2) molecules and on water-vapour (H2O) were measured at energies ranging from 3 to 370 eV and 0.5 to 370 eV, respectively. Measurements were carried out using an electron spectrometer with an improved angular and energy resolution. The presented experimental TCS results are at intermediate energies compared with our total cross section estimations based on calculations of elastic and ionization cross sections.

Electron elastic collisions with C3F6 molecule

Możejko P., Szmytkowski Cz.

TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

2003

Vol. 7, No 2

171-178

We report calculations of differential and integral cross sections for intermediate- and high-energy (50-1000eV) elastic collisions of electrons with hexafluoropropene (C3F6) molecules. The calculations have been carried out using the independent atom model with static-polarization model potential. The present results are compared with elastic cross sections estimated from total and ionization experiments. Agreement between present calculations and the "experiment" is good for energies above 70eV.

Secondary electron interactions in materials with environmental and radiological interest

García G., Blanco F., de Pablos J., Pérez J., Williart A.

Nukleonika

2003

Vol. 48, nr 2

103-107

Important environmental and radiological applications require energy deposition models including the interactions between the secondary electrons and the atoms or molecules of the medium. In this work we propose a method to obtain reliable cross-section data to be used in these models by combining total and ionisation cross-section measurements with simple calculations of the differential and integral elastic cross sections. The energy loss spectra obtained in this experiment have been also used to derive the stopping power of the considered materials for electrons. Some examples of results for atomic (Xe) and molecular (CF4) targets are presented and discussed in this paper.

Resonance contributions to low-energy electron collisions with molecular hydrogen

Horáček J., Čížek M., Houfek K., Kolorenč P., Pichl L.

Nukleonika

2003

Vol. 48, nr 2

109-112

Calculations of electron dissociative attachment and vibrational excitation of molecular hydrogen by low-energy electrons based on an improved nonlocal resonance model are reported. The role of the rotational excitation of the target molecules is discussed.