Properties of CaSO4(Mn) Powder for Thermoluminescence Dosimeter

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概要

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• Thermoluminescence and electron paramagnetic resonance (EPR) of CaSO<SUB>4</SUB>(Mn) powder have been studied. The intensities of the hyperfine lines in the EPR spectra of Mn<SUP>++</SUP> and the heights of the thermoluminescence glow peak are found to change in parallel, upon varying the conditions of heat treatment and the concentration of Mn<SUP>++</SUP> It is also found that Mn<SUP>++</SUP> present in aggregate state, which gives a broad EPR spectrum, is not an effective activator for ther-moluminescence; heat treatment at high temperatures serves to disperse this aggregated Mn<SUP>++</SUP>, which increases the thermoluminescence sensitivity. The relation between the thermolumines-cence intensity and the radiation dose is linear, so long as the duration of irradiation is within certain limits; the deviation from the linear relation is explained in terms of fading of ther-moluminescence at the temperature of irradiation.

• 一般社団法人 日本原子力学会の論文

著者

• IKEYA Motoji

  Department of Nuclear Engineering, Faculty of Engineering, Nagoya University

関連論文

• Properties of CaSO4(Mn) Powder for Thermoluminescence Dosimeter

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