Online chemical adsorption studies of Hg, Tl, and Pb on SiO2 and Au surfaces in preparation for chemical investigations on Cn, Nh, and Fl at TASCA

Lens, Lotte; Yakushev, Alexander; Düllmann, Christoph Emanuel; Asai, Masato; Ballof, Jochen; Block, Michael; David, Helena May; Despotopulos, John; Di Nitto, Antonio; Eberhardt, Klaus; Even, Julia; Götz, Michael; Götz, Stefan; Haba, Hiromitsu; Harkness-Brennan, Laura; Heßberger, Fritz Peter; Herzberg, Rodi D.; Hoffmann, Jan; Hübner, Annett; Jäger, Egon; Judson, Daniel; Khuyagbaatar, Jadambaa; Kindler, Birgit; Komori, Yukiko; Konki, Joonas; Kratz, Jens Volker; Krier, Jörg; Kurz, Nikolaus; Laatiaoui, Mustapha; Lahiri, Susanta; Lommel, Bettina; Maiti, Moumita; Mistry, Andrew K.; Mokry, Christoph; Moody, Ken; Nagame, Yuichiro; Omtvedt, Jon Petter; Papadakis, Philippos; Pershina, Valeria; Runke, Jörg; Schädel, Matthias; Scharrer, Paul; Sato, Tetsuya; Shaughnessy, Dawn; Schausten, Brigitta; Thörle-Pospiech, Petra; Trautmann, Norbert; Tsukada, Kazuaki; Uusitalo, Juha; Ward, Andrew; Wegrzecki, Maciej; Wiehl, Norbert; Yakusheva, Vera

doi:10.1515/ract-2017-2914

Title: Online chemical adsorption studies of Hg, Tl, and Pb on SiO₂ and Au surfaces in preparation for chemical investigations on Cn, Nh, and Fl at TASCA

Journal Article · Sat Aug 11 00:00:00 EDT 2018 · Radiochimica Acta

DOI:https://doi.org/10.1515/ract-2017-2914· OSTI ID:1898301

Lens, Lotte ^[1]; Yakushev, Alexander ^[2]; Düllmann, Christoph Emanuel ^[1]; Asai, Masato ^[3]; Ballof, Jochen ^[4]; Block, Michael ^[1]; David, Helena May ^[5]; Despotopulos, John ^[6]; Di Nitto, Antonio ^[1]; Eberhardt, Klaus ^[7]; Even, Julia ^[8]; Götz, Michael ^[1]; Götz, Stefan ^[1]; Haba, Hiromitsu ^[9]; Harkness-Brennan, Laura ^[10]; Heßberger, Fritz Peter ^[2]; Herzberg, Rodi D. ^[10]; Hoffmann, Jan ^[5]; Hübner, Annett ^[5]; Jäger, Egon ^[5] more »

Johannes Gutenberg Univ., Mainz (Germany); GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany)
GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany); Johannes Gutenberg Univ., Mainz (Germany)
Japan Atomic Energy Agency (JAEA), Ibaraki (Japan)
Johannes Gutenberg Univ., Mainz (Germany); GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Johannes Gutenberg Univ., Mainz (Germany)
Johannes Gutenberg Univ., Mainz (Germany); GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany); ; Univ. of Groningen (Netherlands)
RIKEN, Wako, Saitama (Japan)
Univ. of Liverpool (United Kingdom)
European Organization for Nuclear Research (CERN), Geneva (Switzerland); Univ. of Jyvaskyla (Finland)
Saha Institute of Nuclear Physics, Kolkata (India)
Indian Inst. of Technology (IIT), Roorkee (India)
Univ. of Oslo (Norway)
Univ. of Jyvaskyla (Finland)
GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany); Japan Atomic Energy Agency (JAEA), Ibaraki (Japan)
Institute of Electron Technology, Warsaw (Poland)

Online gas-solid adsorption studies with single-atom quantities of Hg, Tl, and Pb, the lighter homologs of the superheavy elements (SHE) copernicium (Cn, Z=112), nihonium (Nh, Z=113), and flerovium (Fl, Z=114), were carried out using short-lived radioisotopes. The interaction with Au and SiO₂ surfaces was studied and the overall chemical yield was determined. Suitable radioisotopes were produced in fusion-evaporation reactions, isolated in the gas-filled recoil separator TASCA, and flushed rapidly to an adjacent setup of two gas chromatography detector arrays covered with SiO₂ (first array) and Au (second array). While Tl and Pb adsorbed on the SiO₂ surface, Hg interacts only weakly and reached the Au-covered array. Our results contribute to elucidating the influence of relativistic effects on chemical properties of the heaviest elements by providing experimental data on these lighter homologs.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA); Federal Ministry of Education and Research (BMBF)

Grant/Contract Number:: AC52-07NA27344; Nr. 05P12UMFN6

OSTI ID:: 1898301

Alternate ID(s):: OSTI ID: 1901500

Report Number(s):: LLNL-JRNL-838949; LLNL-JRNL-817356; 932065; TRN: US2310876

Journal Information:: Radiochimica Acta, Vol. 106, Issue 12; ISSN 0033-8230

Publisher:: de GruyterCopyright Statement

Country of Publication:: United States

Language:: English

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Title: Online chemical adsorption studies of Hg, Tl, and Pb on SiO2 and Au surfaces in preparation for chemical investigations on Cn, Nh, and Fl at TASCA

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