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. 2024 Sep 27;14:22130. doi: 10.1038/s41598-024-69410-7

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© The Author(s) 2024

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Energy spectrum of electrons ionized by primary photons in air and water medium. (a) Energy spectrum of electrons directly ionized by primary photons in water (black), and air (red) originating either in positron annihilation; (b) Photon energy spectrum of the Compton scattered component in water (blue) and in air (pink). (c) Spectral distributions of energy released in air (black) and water (red) by each interacting photon.