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<p>A novel radiation dosimetry method using lactose was investigated through electrical conductivity measurements. 2–12 wt% % lactose solutions were gamma-irradiated using <sup>60</sup>Co, with 2 wt% showing optimal sensitivity<b>.</b> Electrical conductivity showed superior linearity (1–210&#xa0;kGy) compared to optical absorption (1–17.5&#xa0;kGy). At medium and high doses, the dose–response in electrical conductivity had better sensitivity than optical absorption (0.473 vs 0.147) and (0.252 vs 0.162). The temperature significantly affected the measurement of electrical conductivity (166.4% increase at 65&#xa0;°C) and optical absorption (100.8% increase at 65&#xa0;°C), while daylight had a negligible effect.</p>

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Electrical conductivity of gamma irradiated lactose for dosimetry purposes

  • 期刊论文

  • 发表日期：

    2025年7月29日

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  • Ade Lestari Yunus,
  • Engkir Sukirman,
  • Arbi Dimyati,
  • Arif Rachmanto,
  • M. Yasin Yunus B.I.C

摘要

A novel radiation dosimetry method using lactose was investigated through electrical conductivity measurements. 2–12 wt% % lactose solutions were gamma-irradiated using 60Co, with 2 wt% showing optimal sensitivity. Electrical conductivity showed superior linearity (1–210 kGy) compared to optical absorption (1–17.5 kGy). At medium and high doses, the dose–response in electrical conductivity had better sensitivity than optical absorption (0.473 vs 0.147) and (0.252 vs 0.162). The temperature significantly affected the measurement of electrical conductivity (166.4% increase at 65 °C) and optical absorption (100.8% increase at 65 °C), while daylight had a negligible effect.