Re-cycling of the ETRR-2 core by the UO2 caramel fuel.
Re-cycling of the ETRR-2 core by the MOX mixed with some actinides was made.
Neutronic parameters of the studied fuels were calculated and compared.
Reduction of the 235U mass loaded in the ETRR-2 core was realized.
Power peaking factors of the studied fuels were calculated and compared.