Excitation functions and yields for cyclotron production of radiorhenium via (nat)W(p,xn)(181-186g)Re nuclear reactions and tests on the production of (186g)Re using enriched (186)W
Articolo
Data di Pubblicazione:
2011
Citazione:
Excitation functions and yields for cyclotron production of radiorhenium via (nat)W(p,xn)(181-186g)Re nuclear reactions and tests on the production of (186g)Re using enriched (186)W / M. Bonardi, F. M. Groppi Garlandini, E. Persico, S. Manenti, K. Abbas, U. Holzwart, F. Simonelli, Z.B. Alfassi. - In: RADIOCHIMICA ACTA. - ISSN 0033-8230. - 99:1(2011 Jan), pp. 1-11. [10.1524/ract.2011.1789]
Abstract:
Excitation functions and thin-target yields for the 181−186gRe radionuclides have been measured by the stacked-foil activation technique on tungsten foils of natural isotopic composition for different proton energies up to 22.0MeV. A further check on the cross sections was done by irradiation of thick-targets and comparing the irradiated thick target yields with those calculated by analytical integration from the thin-target yields. The production of 186gRe was
also studied by the irradiation of thick-target of enriched 186W with a 13.6±0.2MeV proton beam. The results for
186W(p, n)186gRe were compared also to those calculated by the EMPIRE II code (version 2.19), due to 186gRe extensive
applications in nuclear medicine for metabolic radiotherapy of tumours. It was found that the maximum percentage of
186gRe by irradiation of natural tungsten is about 20% only, which confirms the conclusion that high radionuclidic purity and specific activity of 186gRe necessitate the use of highly enriched 186W target.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
excitation functions ; thin-target Yield ; thick-target Yield ; cyclotron production ; Re-(181-186g) ; W-186
Elenco autori:
M. Bonardi, F.M. Groppi Garlandini, E. Persico, S. Manenti, K. Abbas, U. Holzwart, F. Simonelli, Z.B. Alfassi
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