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Stability of response of the ferrous-cupric sulfate dosimeter at different temperatures

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Abstract

Aqueous solution of ferrous-cupric sulfate has been evaluated spectrophotometrically as radiation dosimeter and post-irradiation stability at different storage temperatures has been studied. The response curve drawn at a peak wavelength of 304 nm shows a linear response of up to 7 kGy. However, with proper calibration, the system can be used up to 14 kGy. At room temperature (ca. 25 °C) in the dark, the irradiated solution showed stable response up to about 12 h, followed by a small decrease in response up to 20 d. Post-irradiation storage at lower temperature (10 °C) shows no significant change in absorbance over a storage period of 6 d. However, for storage at higher temperature (40 °C) the dosimeter showed a stable response only up to a few hours and at longer storage times the response of the dosimeter increased.

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Authors and Affiliations

  1. National Centre of Excellence in Physical Chemistry, University of Peshawar, 25120, Peshawar, Pakistan

    H. M. Khan & M. Anwar

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  1. H. M. Khan
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  2. M. Anwar
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Khan, H.M., Anwar, M. Stability of response of the ferrous-cupric sulfate dosimeter at different temperatures. Journal of Radioanalytical and Nuclear Chemistry Letters 175, 199–206 (1993). https://doi.org/10.1007/BF02163345

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  • DOI: https://doi.org/10.1007/BF02163345

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