Experiment on the Synthesis of Element 113 in the Reaction209Bi(70Zn,n)278113

2004/10/15 by Kosuke Morita, K. Morimoto, D. Kaji +17 · 24 citations
Physics and Astronomy · Medicine · #Nuclear physics research studies #Astronomical and nuclear sciences #Radiopharmaceutical Chemistry and Applications

paper · doi:10.1143/jpsj.73.2593

openalex publication_date 2004/10/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The convincing candidate event of the isotope of the 113th element, 278 113, and its daughter nuclei, 274 111 and 270 Mt, were observed, for the first time, in the 209 Bi + 70 Zn reaction at a beam energy of 349.0 MeV with a total dose of 1.7 ×10 19 . Alpha decay energies and decay times of the candidates, 278 113, 274 111, and 270 Mt, were (11.68 ±0.04 MeV, 0.344 ms), (11.15 ±0.07 MeV, 9.26 ms), and (10.03 ±0.07 MeV, 7.16 ms), respectively. The production cross section of the isotope was deduced to be 55 +150 -45 fb (10 -39 cm 2 ).

Citations

• The discovery of the heaviest elements
• The new element 111
• Evidence for New Isotopes of Element 107:B<mml:mprescripts/>266handB<mml:mprescripts/>267h

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