Excitation functions and yields of relevance to the production of 67Ga by proton bombardment of natZn and natGe up to 100 MeV |
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| Affiliation: | 1. Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan;2. Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan;3. Nishina Center for Accelerator-Based Science, RIKEN, Wako 351-0198, Japan;1. Graduate School of Biomedical Science and Engineering, Hokkaido University, Sapporo 060-8638, Japan;2. Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan;3. Advanced Clinical Research Center, Fukushima Medical University, Fukushima 960-1295, Japan;4. Nishina Center for Accelerator-Based Science, RIKEN, Wako 351-0198, Japan;5. Institute for Nuclear Research, Hungarian Academy of Sciences (ATOMKI), 4026 Debrecen, Hungary;1. Department of Physics, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan;3. Nuclear Data Section, Division of Physical and Chemical Sciences, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, A-1400 Vienna, Austria;4. Department of Physics, Umaru Musa Yar’adua University, Katsina, Nigeria;1. Institute for Nuclear Research, Hungarian Academy of Sciences, 4026 Debrecen, Hungary;2. Nishina Center for Accelerator-Based Science, RIKEN, Wako 351-0198, Japan;3. Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan;4. Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan;3. Department of Chemistry, M. V. Lomonosov Moscow State University, 119991 Moscow, Russian Federation;4. National Research Centre ‘Kurchatov Institute’, 123098 Moscow, Russian Federation |
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| Abstract: | Excitation functions were measured from threshold up to 100 MeV for the production of 67Ga and its main radiogallium contaminants in the proton bombardment of natZn as well as natGe. From these, thick-target production-rate curves were derived in each case. The results are discussed in terms of expected yield curves of 67Ga suitable for medical use (99% as well as 99.9% radionuclidically pure), obtained by allowing an appropriate period after EOB for its (shorter-lived) radiogallium contaminants to decay before its radiochemical separation. Theoretical calculations performed with the computer code ALICE/85/300 were also compared with the measured excitation functions, and reasonably good agreement was obtained. |
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