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Quantemol Electron Collisions (QEC): An enhanced expert system for performing electron molecule collision calculations using the R-matrix method

Cooper, Bridgette, Tudorovskaya, Maria, Mohr, Sebastian, O'Hare, Aran, Hanicinec, Martin, Dzarasova, Anna, Gorfinkiel, Jimena D., Benda, Jakub, Masín, Zdenek, Al-Refaie, Ahmed F., Knowles, Peter J. and Tennyson, Jonathan 2019. Quantemol Electron Collisions (QEC): An enhanced expert system for performing electron molecule collision calculations using the R-matrix method. Atoms 7 (4) , 97. 10.3390/atoms7040097

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Abstract

Collisions of low energy electrons with molecules are important for understanding many aspects of the environment and technologies. Understanding the processes that occur in these types of collisions can give insights into plasma etching processes, edge effects in fusion plasmas, radiation damage to biological tissues and more. A radical update of the previous expert system for computing observables relevant to these processes, Quantemol-N, is presented. The new Quantemol Electron Collision (QEC) expert system simplifyies the user experience, improving reliability and implements new features. The QEC graphical user interface (GUI) interfaces the Molpro quantum chemistry package for molecular target setups, and the sophisticated UKRmol+ codes to generate accurate and reliable cross-sections. These include elastic cross-sections, super elastic cross-sections between excited states, electron impact dissociation, scattering reaction rates, dissociative electron attachment, differential cross-sections, momentum transfer cross-sections, ionization cross sections, and high energy electron scattering cross-sections. With this new interface we will be implementing dissociative recombination estimations, vibrational excitations for neutrals and ions, and effective core potentials in the near future.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Advanced Research Computing @ Cardiff (ARCCA)
Publisher: MDPI
ISSN: 2218-2004
Date of First Compliant Deposit: 24 October 2019
Date of Acceptance: 8 October 2019
Last Modified: 25 Mar 2020 15:45
URI: http://orca.cf.ac.uk/id/eprint/126278

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