Recent studies of the 249Bk + 48Ca and 243Am + 48Ca reactions have yielded definitive evidence for the discoveries of the new elements with Z = 113, 115 and 117.  The reactions were studied with the U400 cyclotron and gas filled separator at the Flerov Laboratory of Nuclear Reactions in Dubna.   The targets were made in the Oak Ridge National Laboratory High Flux Isotope Reactor, chemically separated and shipped to Russia.  The 2010 results and the 2012 results for the synthesis of 293,294117 will be presented.  The confirmation of 294117 at GSI will be noted.  In the 243Am reaction, 28 measurements of 288115 that alpha decays to 284113 were observed to definitively confirm the three earlier events in Dubna.  Also very important were the four new 289115 events found in these studies at lower energies.  This is the same isotope into which 293117 alpha decays.  Thus, the agreement of the 249Bk 293117 events and 243Am 289115 events on the decay chain of 289115 give definitive cross-bombardment evidence for the discoveries of the new elements with Z = 113, 115 and 117.  The 294117 and 288115 have been seen recently in separate experiments at GSI.  Prospects for future research will be presented.  Of particular importance is the new Super Heavy Element Factory under construction in Dubna which will produce the order of 5000 SHE per year in the new dedicated SHE research facility.  The new opportunities this opens up will be discussed. This work is presented for JINR, ORNL, LLNL, VU Collaboration

Synthesis of Z = 113, 115, 117 super heavy elements

247th National Meeting (2014)

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