Charged-Particle Transport in Biomolecular Media: The Third Generation

  • M. Zaider
  • A. Fung
  • M. Bardash
Part of the Basic Life Sciences book series (BLSC, volume 63)


We describe Monte Carlo codes that simulate, event by event, the interaction of energetic electrons with a double-stranded DNA molecule and with the condensed water surrounding it. Both direct and indirect effects are treated explicitly. The cross-sectional input necessary in the transport codes was obtained via quantum-mechanical calculations of the dielectric response function, ε(q,ω), of polycytidine. For each inelastic event on DNA we score the energy deposited locally, the position of the event and the moiety that underwent that event. This information provides a detailed picture of the spatial disposition of molecular alterations for DNA exposed to ionizing radiation.


Differential Cross Section Random Phase Approximation Relative Biological Effectiveness Excitonic Transition Transport Code 
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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • M. Zaider
    • 1
  • A. Fung
    • 1
  • M. Bardash
    • 2
  1. 1.Center for Radiological ResearchColumbia UniversityNew YorkUSA
  2. 2.Department of Radiation OncologyColumbia UniversityNew YorkUSA

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