Experimental verification of design input of the SPHINX concept of MSR (project EROS – Experimental zero power salt reactor SR-0)

The Molten Salt Reactor (MSR) – SPHINX (SPent Hot fuel Incinerator by Neutron fluX) concept is dealing with the solution of a principle problem of sustainable development of nuclear power – current reactors spent fuel treatment by means of nuclear incineration. It means burning of fissionable part of its inventory and transmutation of other radionuclides by use of nuclear reactions with neutrons in an MSR – SPHINX system.In the SPHINX R&D program, there are besides computational analyses also experimental activities involved in the program, which serves for a verification of design inputs for designing of a demonstration unit of the MSR-type. The experimental program EROS will focus on a large-scale experimental verification of design inputs by use of MSR-type inserting zones into the existing light water moderated experimental reactor LR-0, which may allow to modify it to experimental zero power salt reactor SR-0. There will be a detail description of the proposed program given in the paper together with the so far performed experiments and their preliminary results.