Abstract
The lyoluminescence (LL) of lactose shows a linear γ-ray dose response in the range 1–10 4 Gy. LL standardization measurement of lactose with a luminol sensitizer shows a sharp increase in light output in the pH range 10–11. Effects of radical scavengers and oxygen confirm that the radiation-induced free radicals take part in the LL process and oxygen is essential for initiating the LL mechanism. LL emission spectral measurements indicate an energy transfer from diffusing free radicals to sensitizer molecules to produce light.
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