Excitation Functions of some Neutron Threshold Reactions on 89Y in the Energy Range of 7.8 to 14.7 MeV

R. M. Klopries, R. Dóczi, S. Sudár, J. Csikai, J. Csikai

Research output: Contribution to journalArticle

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Abstract

Excitation functions were measured for 89Y(n,2n)88Y, 89Y(n,p)89Sr and 89Y(n,α)86Rb reactions from their respective thresholds up to 14.7 MeV using the activation technique. Quasi-monoenergetic neutrons in the energy range of 7.8 to 13.3 MeV were produced via the 2H(d,n)3He reaction on a D2 gas target at the Jülich compact cyclotron (CV 28), and monoenergetic neutrons in the range of 13.8 to 14.7 MeV using the D-T neutron generator at Debrecen. For characterization of 88Y and 86Rb, high-resolution γ-ray spectrometry was applied. The latter product was also separated radiochemically and characterized by low-level β- counting; the results obtained using the two counting methods were generally in good agreement. The product 89Sr is a pure β- emitter: its activity was exclusively assayed via radiochemical separation and β- counting. Our results agree with the literature values on the (n,2n) reaction and provide the first consistent set of data on the (n,p) and (n,α) reactions near their thresholds. Statistical model calculations incorporating precompound effects were performed on the three excitation functions under consideration. The experimental and theoretical results were found to be in good agreement. Some systematic trends in the excitation functions in this mass region are discussed.

Original languageEnglish
Pages (from-to)3-9
Number of pages7
JournalRadiochimica Acta
Volume76
Issue number1--2
Publication statusPublished - 1997

Fingerprint

Neutrons
neutrons
counting
thresholds
excitation
radiochemical separation
Cyclotrons
Spectrometry
energy
products
Gases
Chemical activation
cyclotrons
rays
emitters
generators
activation
trends
high resolution
gases

Keywords

  • Cross section
  • Excitation function
  • Low-level βcounting
  • Neutron energy and flux density
  • Neutron induced nuclear reaction
  • Radiochemical separation

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Nuclear Energy and Engineering

Cite this

Excitation Functions of some Neutron Threshold Reactions on 89Y in the Energy Range of 7.8 to 14.7 MeV. / Klopries, R. M.; Dóczi, R.; Sudár, S.; Csikai, J.; Csikai, J.

In: Radiochimica Acta, Vol. 76, No. 1--2, 1997, p. 3-9.

Research output: Contribution to journalArticle

Klopries, R. M. ; Dóczi, R. ; Sudár, S. ; Csikai, J. ; Csikai, J. / Excitation Functions of some Neutron Threshold Reactions on 89Y in the Energy Range of 7.8 to 14.7 MeV. In: Radiochimica Acta. 1997 ; Vol. 76, No. 1--2. pp. 3-9.
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