Deep core photoelectron spectroscopic studies of atoms and molecules using hard x-ray

Boudjemia, Nacer (2020-11-27)
 
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Boudjemia, Nacer
University of Oulu
27.11.2020
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https://urn.fi/URN:ISBN:9789526228082

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Academic Dissertation to be presented with the assent of the Doctoral training committee of Technology and Natural Sciences of the University of Oulu for public discussion in the Auditorium L5, on December 11th, 2020, at 12 o'clock noon.
Tiivistelmä

Abstract

In this thesis the electronic structure and dynamics of iodine, krypton and bromine atoms in isolated and molecular forms are investigated through K-shell photoexcitation and subsequent Auger decay. The experimental studies are carried out using hard x-ray photoelectron spectroscopic techniques and the theoretical work by applying relativistic ab initio quantum mechanical models. The reported photoelectron spectra from iodine compounds CH3I and CF3I have the highest binding energy, 33.2 keV, recorded from any molecule in the gas phase up to date. From the spectra it is shown that chemical shifts are observable even at such deep core orbitals. From krypton a detailed analysis of Auger decay and Fluorescence cascade following K and L-shell ionization up to quadruple ionized states is presented. The work concerning bromine provides an analysis of photoionization, excitation, lifetime, Auger decay and nuclear dynamics around the K-edge of HBr molecule.

 

Original papers

Original papers are not included in the electronic version of the dissertation.

  1. Boudjemia, N., Jänkälä, K., Gejo, T., Nagaya, K., Tamasaku, K., Huttula, M., … Oura, M. (2019). Deep core photoionization of iodine in CH₃I and CF₃I molecules: how deep down does the chemical shift reach? Physical Chemistry Chemical Physics, 21(10), 5448–5454. https://doi.org/10.1039/c8cp07307d

    Self-archived version

  2. Boudjemia, N., Jänkälä, K., Püttner, R., Gejo, T., Journel, L., Kohmura, Y., … Oura, M. (2020). Deep-core photoionization of krypton atoms below and above the 1s ionization threshold. Physical Review A, 101(5). https://doi.org/10.1103/physreva.101.053405

    Self-archived version

  3. Boudjemia, N., Jänkälä, K., Püttner, R., Marchenko, T., Travnikova, O., Guillemin, R., … Simon, M. (2020). Electron spectroscopy and dynamics of HBr around the Br 1s⁻¹ threshold. Physical Chemistry Chemical Physics. https://doi.org/10.1039/d0cp04787b

    Self-archived version

 

Osajulkaisut

Osajulkaisut eivät sisälly väitöskirjan elektroniseen versioon.

  1. Boudjemia, N., Jänkälä, K., Gejo, T., Nagaya, K., Tamasaku, K., Huttula, M., … Oura, M. (2019). Deep core photoionization of iodine in CH₃I and CF₃I molecules: how deep down does the chemical shift reach? Physical Chemistry Chemical Physics, 21(10), 5448–5454. https://doi.org/10.1039/c8cp07307d

    Rinnakkaistallennettu versio

  2. Boudjemia, N., Jänkälä, K., Püttner, R., Gejo, T., Journel, L., Kohmura, Y., … Oura, M. (2020). Deep-core photoionization of krypton atoms below and above the 1s ionization threshold. Physical Review A, 101(5). https://doi.org/10.1103/physreva.101.053405

    Rinnakkaistallennettu versio

  3. Boudjemia, N., Jänkälä, K., Püttner, R., Marchenko, T., Travnikova, O., Guillemin, R., … Simon, M. (2020). Electron spectroscopy and dynamics of HBr around the Br 1s⁻¹ threshold. Physical Chemistry Chemical Physics. https://doi.org/10.1039/d0cp04787b

    Rinnakkaistallennettu versio

 
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