Production of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>265</mml:mn></mml:msup></mml:math>Sg in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>248</mml:mn></mml:msup></mml:math>Cm(<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>22</mml:mn></mml:msup></mml:math>Ne,5<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inl

Haba, Hiromitsu; Kaji, D.; Kudou, Y.; Morimoto, K.; Morita, Kosuke; Ozeki, Kazutaka; Sakai, Ryutaro; Sumita, T.; Yoneda, Akira; Kasamatsu, Y.; Komori, Yukiko; Shinohara, Atsushi; Kikunaga, H.; Kudo, Hiroyuki; Nishio, K.; Ooe, Kazuhiro; Sato, N.; Tsukada, K.

doi:10.1103/physrevc.85.024611

Cited by 58 publications

(49 citation statements)

References 35 publications

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“…At the GARIS recoil separator of RIKEN, Haba and coworkers [117,124,125] have successfully synthesized and pre-separated the isotope 265 Sg which is available at a rate of about one atom per hour for chemical investigations [79]. This gave access to detailed nuclear decay studies of the ground-state and the isomeric state of 265 Sg [79] and to the complex decay pattern into two states of 261 Rf [126,127]. These experiments confirmed results from an earlier meta-analysis [215].…”

Section: Gas Phase Chemistrysupporting

confidence: 66%

“…Both lead to stable operation at beam currents of often more than 1 µA (particle). Separator efficiencies of about 60% for element 114 produced in the 48 Ca on 244 Pu reaction at TASCA [130] and still 13% for 265 Sg synthesized in the very asymmetric 22 Ne on 248 Cm reaction at GARIS [79] have been reached.…”

Section: Physical Pre-separatorsmentioning

confidence: 90%

“…Interpretation of a ≈ 20-s SF decay component, also observed in these experiments, to be 266 Sg was recently shown to originate from a short-lived isomeric decay in the 265 Sg daughter nucleus 261 Rf [79,215]. The 22 Ne + 248 Cm reaction produces two states of 265 Sg with half-lives of 9 and 16 s, respectively [79,215]. They will also be used in presently prepared, future Sg experiments.…”

Section: Seaborgium (Sg Element 106)mentioning

confidence: 99%

“…Plans are under way to perform a ground breaking gas-phase chemistry experiment on the formation, stability, volatility, and detection of Sg(CO) 6 in a large international collaboration. At the GARIS recoil separator of RIKEN, Haba and coworkers [117,124,125] have successfully synthesized and pre-separated the isotope 265 Sg which is available at a rate of about one atom per hour for chemical investigations [79]. This gave access to detailed nuclear decay studies of the ground-state and the isomeric state of 265 Sg [79] and to the complex decay pattern into two states of 261 Rf [126,127].…”

Section: Gas Phase Chemistrymentioning

confidence: 99%

“…Consequently, three to five neutrons are emitted before the compound nucleus has cooled. Still, because of the neutron-richness of actinides targets, these reactions yield the more neutron-rich, rela- tively long-lived isotopes used in chemical investigations of SHE; see Table 2 for used nuclides and [25,32,37,38,60,78,79] for more details.…”

Section: Nuclear Syntheses and Decaysmentioning

confidence: 99%

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Chemistry of superheavy elements

Schädel

2012

Radiochimica Acta

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Summary. The chemistry of superheavy elements -or transactinides from their position in the Periodic Table -is summarized. After giving an overview over historical developments, nuclear aspects about synthesis of neutron-rich isotopes of these elements, produced in hot-fusion reactions, and their nuclear decay properties are briefly mentioned. Specific requirements to cope with the one-atom-at-a-time situation in automated chemical separations and recent developments in aqueous-phase and gas-phase chemistry are presented. Exciting, current developments, first applications, and future prospects of chemical separations behind physical recoil separators ("pre-separator") are discussed in detail. The status of our current knowledge about the chemistry of rutherfordium (Rf, element 104), dubnium (Db, element 105), seaborgium (Sg, element 106), bohrium (Bh, element 107), hassium (Hs, element 108), copernicium (Cn, element 112), and element 114 is discussed from an experimental point of view. Recent results are emphasized and compared with empirical extrapolations and with fully-relativistic theoretical calculations, especially also under the aspect of the architecture of the Periodic Table.

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