Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Dissociative Electron Attachment"”.
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Low-energy electron diffraction effects at complex interfaces
Low-energy electron scattering was used as a tool to study electron-stimulated processes at complex interfaces. The electron diffraction in each complex interface is theoretically treated by a multiple scattering formalism for quantitative analysis. Mathematical descriptions of electron-stimulated …
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Electron Attachment To Small Molecular Clusters
A large number of secondary electrons with low energies (< 20 eV) is produced during irradiation of biological matter. It is known that such electrons lead to fragmentation of DNA via dissociative electron attachment (DEA). DEA happens via the formation of a resonance (transient negative ion). …
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Etude par Spectrométrie de Masse de la formation d'Ions Négatifs par Attachement Electronique Dissociatif et par le processus de Paire d'Ions.
… of negative ions by both the mechanism of Dissociative Electron Attachment (DEA) and Ion Pair processes (IPP) by electron impact. Using the appropriate instrumentation (a conventional Nier type mass spectrometer) the best conditions are chosen to ensure ion-molecule collision free ion …
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Conformational behaviour of selected silicon- and germanium-containing ring systems
… temperature-dependent Raman spectroscopy and gas electron diffraction (GED). Attempts to observe directly the axial and equatorial conformers by freezing the inversion on the NMR time scale failed because of the low barrier for inversion and the flexibility of the compounds. The …
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Positronium formation in organic liquids and studies of micelle, liposome and polymer systems by position annihilation technique
… nuclear decay process (β+) can interact with an electron resulting in a positronium formation (Ps). In the first part of this thesis the formation of positronium in benzene solutions containing various halogenated compounds was studied in the presence and absence of C₆F₆ additives. The observed …
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Generation and Characterization of Energetic Neutral Beams for Surface Modification
… and plasma imaging was used to study the electron temperature, electron density and electromagnetic structure in the capacitive and inductive modes of operation. Measured average energies in the tail of the electron energy distribution function ranged between 7 and 9 eV in a pressure range …
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Interaction of the potential DNA-radiosensitizer 8-bromoadenine with free and plasmonically generated electrons
… to their interaction with secondary low energy electrons (LEEs) that are generated along the track of the ionizing radiation. In the therapy of cancer DNA is an important target, as severe DNA damage like double strand breaks induce the cell death. As there is only a limited number of …
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Photoelectron Imaging of Iodide Centered Alkyl Halide Cluster Anions
… iodide anion as a means of investigating electron molecule interaction. Due to the localization of the excess charge on the iodine atom, these experiments proceed analogously to electron scattering experiments, in that exposure to sufficient photon energy detaches the electron, which may …
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Thermal and electron stimulated chemistry of complex adsorbates on metal surfaces
… Mo(IV) oxide “shell” which encapsulates two electronically active pyramidal sulfite (SIVO32-) groups, and has the ability to reversibly interconvert between two electronic states. In the passive state, at cryogenic temperatures (77 K), the two SO32- groups are non-bonding with respect to the …