Abstract
Understanding the effects of low doses of ionizing radi ation on living systems requires detailed information on electron transport in biomaterials. This, in turn, can be obtained from the wave-vector- and frequency-depen dent dielectric response function of the system, ∈(q,ω), via the energy-loss function, Im[-1/∈( q,ω)]. We describe two different possible approaches to obtaining these functions, one based on the semiempirical tight-binding approximation, the other using Hedin's many-body treatment of quasiparticle states in solids. These methods are exemplified with calculations for cubic ice (as a model for cellular "structured" water) and trans- polyacetylene. The availability of supercomputers makes the application of these techniques feasible.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The International Journal of Supercomputing Applications
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
