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I. A. Abbasi, Jamshed Hussain Zaidi, M. Arif, Shahida Waheed, Muhammad Sadiq Subhani

Measurement of fission neutron spectrum averaged cross sections of some threshold reactions on zirconium: Production possibility of no-carrier-added ⁹⁰Y in a nuclear reactor

Keywords: Fission neutron spectrum, Neutron threshold reaction, Activation technique, Cross section, Radiochemical separation

Employing the activation technique in combination with radiochemical separations and high-resolution γ-ray spectroscopy fission neutron spectrum averaged cross sections were measured for several (n,p) and (n,α) reactions on isotopes of zirconium; our measurements constitute the first systematic study. The special interest was in the investigation of the ⁹⁰Zr(n,p) ⁹⁰Y reaction for the production of no-carrier-added ⁹⁰Y in a nuclear reactor. At a fast neutron flux density of 7.5×10¹³ cm^-2 s^-1 and an irradiation time of 120 h, using 100% enriched ⁹⁰Zr target 0.548 GBq of no-carrier-added ⁹⁰Y per batch could be produced. The method is thus suitable for medium-scale production of this radionuclide.

Radiochimica Acta, Oldenbourg Wissenschaftsverlag

Print ISSN: 0033-8230
Volume: 94, 08/2006
Pages: 381 - 384

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