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Identifier 000358212
Title Απεικονιστικές μέθοδοι στη χημική δυναμική
Alternative Title Imaging techniques in chemical dynamics
Author Ζαούρης, Δημήτριος Κ.
Thesis advisor Κιτσόπουλος, Θεοφάνης Ν.
Abstract The main goal of this thesis is the description of imaging methods and their use in chemical dynamics experimental procedures. Moreover, the results from the photodissociation of acetaldehyde with the slice imaging technique are presented. The thesis consists of three chapters. In the first chapter basic principles of physical chemistry, laser spectroscopy and chemical dynamics are presented. The chapter begins with the description of potential energy surfaces, which are the cornerstone of chemical dynamics. The chapter continues with the presentation of time of flight spectroscopy. This technique is considered to be one the best for recording a mass spectrum. Further on, the functionality of lasers is analyzed. The chapter ends with a brief discussion on the basic principles of ionization spectroscopy. The second chapter is dedicated to imaging techniques. In the first part the dynamics of imaging are presented. This followed by an introduction to velocity map imaging technique, which was one of the first imaging techniques widely used. Moreover, the slice imaging technique is described. Finally, one major advance in the slice imaging technique is discussed. This advance is known as single field slice imaging. The third and final chapter of this thesis there is the presentation of the photodissociation of acetaldehyde at 248 nm. The chapter begins with the analysis of acetaldehyde photochemistry and continues with the experimental and theoretical justification of the roaming mechanism. At the end of the chapter the results from the detection of CO photofragments, in several different rotational states, are presented. The chapter end with some conclusions concerning the experimental results.
Language Greek
Subject REMPI
acetaldehyde
carbon monoxide
imaging techniques
roaming mechanism
slice imaging
velocity mapping
ακεταλδεΰδη
απεικόνιση τόμων
μηχανισμός περιπλάνησης
μονοξείδιο του άνθρακα
τεχνικές απεικόνισης
χαρτογράφηση ταχυτήτων
Issue date 2010-03-26
Collection   Faculty/Department--Faculty of Sciences and Engineering--Department of Chemistry--Post-graduate theses
  Type of Work--Post-graduate theses
Permanent Link https://elocus.lib.uoc.gr//dlib/9/e/8/metadata-dlib-b8637551549cf00d861d2ecd6d0f415a_1278401982.tkl Bookmark and Share
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