Section measurements on gas targets relevant to the production of the positron emitting radionuclides 14O, 18F and 76Br

Bernhard Scholten, Eike Hess, S. Takács, Zoltan Kovács, F. Tárkányi, Heinz H. Coeneni, Syed M. Qaimi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

During the production of the ß+ emitting radionuclide 11C via the 14N(p, α)-reaction on a N2-gas target, appreciable quantities of 14O are formed as a side product via the 14N(p, n) reaction. Since its formation cross sections were not known well, we measured the data from the reaction threshold up to 20 MeV. The experimental cross section data for the production of the PET-isotope 18F via the most commonly used 180(p, n)18F reaction were found to be rather weak or discrepant in some energy regions. Therefore the excitation function was remeasured from threshold up to 30 MeV using different solid and gas targets containing highly enriched 18O. The longer-lived ß+ emitter 76Br is of some importance for investigating slow metabolic processes. The hithero unknown reaction 78Kr(d, α)76Br was investigated for the first time and its excitation function measured over the energy range up to 13 MeV by using the stacked gas cell technique.

Original languageEnglish
Pages (from-to)1278-1281
Number of pages4
JournalJournal of Nuclear Science and Technology
Volume39
DOIs
Publication statusPublished - 2002

Keywords

  • OF
  • Br
  • Kr
  • Cross section
  • Excitation function
  • Gas target, C
  • Nuclear reaction
  • Positron emitter

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

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