Wälzlein, Cathrin Gabriele
Nanometer scale description of electron transport and damage in condensed media using the TRAX Monte Carlo Code.
Technische Universität, Darmstadt
[Ph.D. Thesis], (2013)
Available under Creative Commons Attribution Non-commercial No Derivatives, 2.5.
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|Item Type:||Ph.D. Thesis|
|Title:||Nanometer scale description of electron transport and damage in condensed media using the TRAX Monte Carlo Code|
The single interaction Monte Carlo code TRAX has been extended to describe low-energy electron creation and transport in solids. Electrons with energies below 1 keV have ranges in solids on the nanometerscale. Complete sets of electron interaction cross sections for energies below 1 keV down to 1 eV have been compiled and assessed for various target materials. The applicability of the cross sections has been validated by comparisons with experimental data as far as available. The code has further been extended to handle the production of Auger electrons and cascades. Furthermore, the capability to handle non-uniform targets has been added. With the extended TRAX code, experimental data from GSI’s Toroid electron spectrometer have been reproduced using thin solid state foils of carbon, nickel, silver and gold as targets. Furthermore, the radial dose distribution around ion tracks has been investigated on the nanometer scale. The explicit consideration of Auger electron cascades has been used to evaluate whether metallic nanoparticles can locally enhance the dose in combination with proton or electron irradiation.
|Place of Publication:||Darmstadt|
|Classification DDC:||500 Naturwissenschaften und Mathematik > 530 Physik|
|Divisions:||05 Department of Physics|
|Date Deposited:||11 Feb 2014 09:25|
|Last Modified:||11 Feb 2014 09:25|
|Referees:||Durante, Prof. Dr. Marco and Drossel, Prof. Dr. Barbara|
|Refereed:||16 December 2013|