Journal of Applied Physical Science International

Along with the development of energy gain in the Energy Amplifier (EA) system proposed by C. Rubbia [1], solving the problem of destruction all actinide elements by fission is considered.
This system transforms LLFFs (Long Lived Fission Fragments) into short-lived or stable elements [2-4]; as well as transforming stable elements into radioactive elements. Therefore, we can’t exclude that the “inverse” process may occur while ADS is being operated.
In this work, we use semi-empirical formulas established from the TARC experiment [5] to calculate the transmutation rate of the short lived or stable elements ¹³⁴Cs, ¹³⁶Cs, ⁹²Mo, ⁹²Z and ⁷⁸Se into the long lived radioactive elements. The transmutation rate tr_th of ¹³⁴Cs, ¹³⁶Cs and ⁷⁸Se is rather high. This demonstrates that these isotopes are able to capture neutrons in the high resonance region and that EA can transform them into long- lived isotopes. We offer suggestions to resolve the inverse effect for destruction of LLFFs in ADS.