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Styrylcyanine dye solutions for radiation dosimetry

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Abstract

The effect of γ-radiation on the electronic absorption spectra of the negatively solvatochromic dyestuff1, namely, 4-(4′-N,N,-dimethylaminostyryl)-pyridinium methiodide in water and dimethylsulphoxide solvents is investigated. Ionizing radiation at different absorbed doses brought about gradual bleaching of aerated dye solutions. The γ-radiation-induced degradation and the consequent changes in the electronic absorption spectrum of dye 1 are discussed in the light of the theoretically calculated spectrum. The linear response range of dye1 in case of DMSO solution is wider than that in H2O. The results demonstrate that the radiochromic dye solution offer dosimetry in the low dose range by means of visible spectrophotometric analysis.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Science, Ain Shams University, Abbassia, Cairo, (Egypt)

    M. S. A. Abdel-Mottaleb

  2. National Center for Radiation Research and Technology, Nasr City, P. O. Box 29, Cairo, (Egypt)

    F. Abdel-Rahim & N. B. El-Assy

Authors
  1. M. S. A. Abdel-Mottaleb
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  2. F. Abdel-Rahim
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  3. N. B. El-Assy
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Abdel-Mottaleb, M.S.A., Abdel-Rahim, F. & El-Assy, N.B. Styrylcyanine dye solutions for radiation dosimetry. Journal of Radioanalytical and Nuclear Chemistry, Articles 81, 67–75 (1984). https://doi.org/10.1007/BF02132922

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  • DOI: https://doi.org/10.1007/BF02132922

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