Advanced search
2 files | 2.50 MB

Electron nuclear double resonance study of photostimulated luminescence active centers in CsBr:Eu2+ medical imaging plates

(2011) PHYSICAL REVIEW B. 83(05).
Author
Organization
Abstract
CsBr:Eu2+ needle image plates exhibit an electron-paramagnetic-resonance (EPR) spectrum at room temperature (RT), whose intensity is correlated with the photostimulated luminescence sensitivity of the plate. This EPR spectrum shows a strong temperature dependence: At RT it is owing to a single Eu2+ (S = 7/2) center with axial symmetry, whereas at T < 35 K the spectra can only be explained when two distinct centers are assumed to be present, a minority axial center and a majority center with nearly extremely rhombic symmetry. In this paper these low-temperature centers are studied with electron nuclear double resonance (ENDOR) spectroscopy, which reveals the presence of H-1 nuclei close to the central Eu2+ ions in the centers. Analysis of the angular dependence of the ENDOR spectra allows to propose models for these centers, providing an explanation for the observed difference in intensity between the spectral components and for their temperature dependence.
Keywords
HALIDE CRYSTALS, COMPUTED RADIOGRAPHY, EPR, NH4CL, TEMPERATURE, EU2+, ESR

Downloads

  • VrielinckPRB2011Preprint.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 1.10 MB
  • VrielinckPRB2011.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 1.39 MB

Citation

Please use this url to cite or link to this publication:

Chicago
Vrielinck, Henk, Frank Loncke, Jean-Pierre Tahon, Paul Leblans, Paul Matthys, and Freddy Callens. 2011. “Electron Nuclear Double Resonance Study of Photostimulated Luminescence Active Centers in CsBr:Eu2+ Medical Imaging Plates.” Physical Review B 83 (05).
APA
Vrielinck, H., Loncke, F., Tahon, J.-P., Leblans, P., Matthys, P., & Callens, F. (2011). Electron nuclear double resonance study of photostimulated luminescence active centers in CsBr:Eu2+ medical imaging plates. PHYSICAL REVIEW B, 83(05).
Vancouver
1.
Vrielinck H, Loncke F, Tahon J-P, Leblans P, Matthys P, Callens F. Electron nuclear double resonance study of photostimulated luminescence active centers in CsBr:Eu2+ medical imaging plates. PHYSICAL REVIEW B. 2011;83(05).
MLA
Vrielinck, Henk, Frank Loncke, Jean-Pierre Tahon, et al. “Electron Nuclear Double Resonance Study of Photostimulated Luminescence Active Centers in CsBr:Eu2+ Medical Imaging Plates.” PHYSICAL REVIEW B 83.05 (2011): n. pag. Print.
@article{1148521,
  abstract     = {CsBr:Eu2+ needle image plates exhibit an electron-paramagnetic-resonance (EPR) spectrum at room temperature (RT), whose intensity is correlated with the photostimulated luminescence sensitivity of the plate. This EPR spectrum shows a strong temperature dependence: At RT it is owing to a single Eu2+ (S = 7/2) center with axial symmetry, whereas at T {\textlangle} 35 K the spectra can only be explained when two distinct centers are assumed to be present, a minority axial center and a majority center with nearly extremely rhombic symmetry. In this paper these low-temperature centers are studied with electron nuclear double resonance (ENDOR) spectroscopy, which reveals the presence of H-1 nuclei close to the central Eu2+ ions in the centers. Analysis of the angular dependence of the ENDOR spectra allows to propose models for these centers, providing an explanation for the observed difference in intensity between the spectral components and for their temperature dependence.},
  articleno    = {054102},
  author       = {Vrielinck, Henk and Loncke, Frank and Tahon, Jean-Pierre and Leblans, Paul  and Matthys, Paul and Callens, Freddy},
  issn         = {1098-0121},
  journal      = {PHYSICAL REVIEW B},
  language     = {eng},
  number       = {05},
  pages        = {9},
  title        = {Electron nuclear double resonance study of photostimulated luminescence active centers in CsBr:Eu2+ medical imaging plates},
  url          = {http://dx.doi.org/10.1103/PhysRevB.83.054102},
  volume       = {83},
  year         = {2011},
}

Altmetric
View in Altmetric
Web of Science
Times cited: