The production of neutron-rich heavy nuclei of astrophysical interest at the IRIS facility

https://doi.org/10.1016/0168-583X(92)95911-AGet rights and content

Abstract

Targets of ThCx and UCx have been used for production of Fr, Ra(Ac) nuclides of astrophysical interest at the IRIS mass separator on line with the 1 GeV proton synchrocyclotron at LNPI. A fine-grained powder of a target has been prepared using a special technology based on high temperature destruction of the thermostable organometallic compounds of U, Th or Cm (diphtalocyanine). New neutron-rich nuclides have been identified: 232Fr (5 ± 1 s), 233Ra (30 ± 5 s), 234Ra (30 ± 10 s). The yields of some nuclides from a CmCx target have been also determined.

References (11)

  • H.L. Ravn

    Phys. Rep.

    (1979)
    H.L. Ravn

    Nucl. Instr. and Meth.

    (1987)
  • E. Burbidge et al.

    Rev. Mod. Phys.

    (1957)
  • L.C. Carraz et al.

    Nucl. Instr. and Meth.

    (1979)
  • H.L. Ravn et al.

    Nucl. Instr. and Meth.

    (1987)
  • H.L. Ravn et al.

    Nucl. Instr. and Meth.

    (1975)
There are more references available in the full text version of this article.

Cited by (15)

  • Nuclear Data Sheets for A=233

    2020, Nuclear Data Sheets
  • Target materials for exotic ISOL beams

    2016, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
  • An off-line method to characterize the fission product release from uranium carbide-target prototypes developed for SPIRAL2 project

    2012, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
    Citation Excerpt :

    At first these targets were made of uranium carbide but soon thorium carbides and oxides were also used [1]. In the early nineties, porous uranium carbide targets were elaborated from diphtalocyanine at the IRIS facility (Russia) [2]. In 2000, with the collaboration of ANL (USA), Institut de Physique Nucléaire d’Orsay (IPNO) initiated the developments leading the way to the first ISOL molten U target [3].

  • Nuclear Data Sheets for A = 234

    2007, Nuclear Data Sheets
  • Nuclear Data Sheets for A = 232

    2006, Nuclear Data Sheets
  • Release of Kr, Ag, Sn, I and Xe from UC<inf>x</inf> targets

    2006, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
View all citing articles on Scopus
View full text