Evidence for New Isotopes of Element 107:B<mml:mprescripts/>266handB<mml:mprescripts/>267h

2000/09/25 by P. A. Wilk, Κ. Ε. Gregorich, Α. Türler +12 · 12 citations
Physics and Astronomy · Medicine · #Nuclear Physics and Applications #Nuclear physics research studies #Radiation Therapy and Dosimetry

paper · doi:10.1103/physrevlett.85.2697

openalex publication_date 2000/09/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01

Abstract

New neutron rich isotopes ₁₀₇²⁶⁷Bh and ₁₀₇²⁶⁶Bh were produced in bombardments of a ²⁴⁹Bk target with 117-MeV and 123-MeV ²²Ne ions at the Lawrence Berkeley National Laboratory 88-Inch Cyclotron. Identification was made by observation of correlated \ensuremathα-particle decays between the Bh isotopes and their Db and Lr daughters using a rotating wheel system. ²⁶⁷Bh was produced with a cross section of \ensuremath≈70 pb and decays with a 17_\ensuremath-6⁺¹⁴ s half life by emission of \ensuremathα particles with an average energy of 8.83\ifmmode±\else\textpm\fi0.03 MeV. One atom of ²⁶⁶Bh was observed, decaying within 1 s by emission of a 9.29-MeV \ensuremathα particle.

Citations

• Identification of element 107 by? correlation chains

Cited by

• New isotope 265Bh
• Lightest Isotope of Bh Produced via theBi<mml:mprescripts/><mml:none/>209(Cr<mml:mprescripts/><mml:none/>52,n)Bh<mml:mprescripts/><mml:none/>260Reaction
• Experiment on the Synthesis of Element 113 in the Reaction209Bi(70Zn,n)278113
• Synthesis of elements 115 and 113 in the reactionAm<mml:mprescripts/><mml:none/>243+Ca<mml:mprescripts/><mml:none/>48
• Properties of Group Five and Group Seven transactinium elements
• In situ synthesis of volatile carbonyl complexes with short-lived nuclides
• Decay Properties of 266Bh and 262Db Produced in the 248Cm + 23Na Reaction
• New Result in the Production and Decay of an Isotope,278113, of the 113th Element
• Experiments on the synthesis of element 115 in the reactionAm<mml:mprescripts/><mml:none/>243(Ca<mml:mprescripts/><mml:none/>48,xn)115<mml:mprescripts/><mml:none/>291−x
• Discovery of the elements with atomic numbersZ = 113, 115 and 117 (IUPAC Technical Report)
• Bohrium [wikipedia]
• Isotopes of bohrium [wikipedia]