Measurement of 43Sc and 44Sc production cross-section with an 18 MeV medical PET cyclotron

Carzaniga, Tommaso Stefano; Auger, Martin; Braccini, Saverio; Bunka, M.; Ereditato, Antonio; Nesteruk, Konrad Pawel; Scampoli, Paola; Thürler, A.; van der Meulen, N. (2017). Measurement of 43Sc and 44Sc production cross-section with an 18 MeV medical PET cyclotron. Applied radiation and isotopes, 129, pp. 96-102. Elsevier 10.1016/j.apradiso.2017.08.013

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⁴³Sc and ⁴⁴Sc are positron emitter radionuclides that, in conjunction with the β- emitter ⁴⁷Sc, represent one of the most promising possibilities for theranostics in nuclear medicine. Their availability in suitable quantity and quality for medical applications is an open issue and their production with medical cyclotrons represents a scientific and technological challenge. For this purpose, an accurate knowledge of the production cross sections is mandatory. In this paper, we report on the cross section measurement of the reactions ⁴³Ca(p,n)⁴³Sc, ⁴⁴Ca(p,n) ⁴³Sc, ⁴⁶Ti(p,α)⁴³Sc, and ⁴⁴Ca(p,n)⁴⁴Sc at the Bern University Hospital cyclotron. A study of the production yield and purity performed by using commercially available enriched target materials is also presented.

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