I read that powerful pulsed lasers can change isotopes: J. Magill, et. al.: "Laser transmutation of iodine-129".
Did anyone estimate what would be the energy costs to transmutate 1 kg of fission product from a conventional reactor using such a laser or an accelerator?
Is it even possible to transmutate a mixture of isotopes?
Would that be a viable alternative to long term storage if we find a way to get enough energy?
Right now I seriously doubt that we could ever process 100s of kilograms using such techniques.