XVIth International Workshop on
Quantum Systems in
Chemistry and Physics
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Calculation of Energy Deposition by Swift Ions in Biomolecules: Glycine to DNA
John R. Sabin,1,2 Stephan P. A. Sauer,{3 and Jens Oddershede1,2
1Department of Physics and Chemistry, University of Southern Denmark, Odense Denmark
2Quantum Theory Project, Department of Physics, University of Florida, Gainesville, Florida, USA
3Department of Chemistry, University of Copenhagen, Copenhagen, Denmark
The effects of energy transfer from swift ion radiation to biomolecules are best described by the stopping cross section of the target molecule for the projectile ion. In turn, the mean excitation energy of the target is the determining factor in the stopping cross section. Using polarization propagator methodology, the mean excitation energies of components of several biomolecular systems, ranging from amino acids to nucleotides have been calculated, and are reported here. The calculated mean excitation energies could then be used to determine the stopping cross sections of the various biomolecular systems.



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