Chemical process for a radiosynthetic Ganymedian organism?

I'm trying to build an underwater ecosystem under the ice crust of Ganymede. I know Jupiter emits a large amount of ionizing radiation and synchotrons and thought that would maybe be able to replace sunlight in this ecosystem. My idea is some sort of large organism that would burrow into the ice with root like tendrils to absorb the radiation and basically fit the ecological niche of trees. I've also read about radiotropic melanized fungi that are thought to use melanin to drop the wavelength of some high energy radiation to a usable level.

So my question is

1. Could these organisms use melanin to absorb a portion of the radiation as heat and output a usable wavelength of radiation for a chemical process analogous to photosynthesis where it would introduce oxygen into my ecosystem?
2. If not, then (assuming any necessary nutirent/molecule needed is naturally present) is there any theoretical chemical process for these organisms using radiosynthesis?

posted over 5 years ago

AJ D.‭

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