Production Cross-Section Measurements for Terbium Radionuclides of Medical Interest Produced in Tantalum Targets Irradiated by 0.3 to 1.7 GeV Protons and Corresponding Thick Target Yield Calculations

Frontiers in Medicine

Roberto Formento-Cavaier¹  Stefan Spellerberg²  Olaf Felden²  Bernhard Scholten²  Bernd Neumaier²  Ingo Spahn²  Ralf Gebel²  Ulli Köster³  Hannelore Verhoeven⁴  Simon Stegemann⁴  Gregory J. Farooq-Smith⁴  Kristof Dockx⁴  Thomas E. Cocolios⁴  Charlotte Duchemin⁵  Maria E. Stamati⁶ 

[1] Advanced Accelerator Applications, A Novartis Company, Colleretto Giacosa, Italy;Forschungszentrum Jülich GmbH, Jülich, Germany;Insitut Laue-Langevin, Grenoble, France;Katholieke Universiteit Leuven, Institute for Nuclear and Radiation Physics, Leuven, Belgium;Katholieke Universiteit Leuven, Institute for Nuclear and Radiation Physics, Leuven, Belgium;European Organization for Nuclear Research, European Organization for Nuclear Research, Geneva, Switzerland;Physics Department, University of Ioannina, Ioannina, Greece;

关键词: spallation;    protons;    tantalum;    medical applications;    terbium;    cross-sections;   

DOI  :  10.3389/fmed.2021.625561

来源: Frontiers

【 摘 要 】

This work presents the production cross-sections of Ce, Tb and Dy radionuclides produced by 300 MeV to 1.7 GeV proton-induced spallation reactions in thin tantalum targets as well as the related Thick Target production Yield (TTY) values and ratios. The motivation is to optimise the production of terbium radionuclides for medical applications and to find out at which energy the purity of the collection by mass separation would be highest. For that purpose, activation experiments were performed using the COSY synchrotron at FZ Jülich utilising the stacked-foils technique and γ spectrometry with high-purity germanium detectors. The Al-27(p,x)Na-24 reaction has been used as monitor reaction. All experimental data have been systematically compared with the existing literature.

【 授权许可】

CC BY