Abstract：
:Method for production of alpha emitter 149Tb by irradiation of 151Eu with 70 MeV 3He nuclei is proposed. For the first time, the cross sections for the formation of isotopes 149,150,151,152Tb were measured experimentally using a stack foil technique in the 3He particles energy range 70 → 12 MeV. The thick target yield of 149Tb is 39 MBq/μAh, or 230 MBq/μA 149Tb at saturation. The optimal energy range from the point of view of radioisotopic purity is 70 → 40 MeV. At these conditions about 150 MBq/μA 149Tb can be produced in 8 hours irradiation, which is sufficient for therapeutic applications. The main impurities are 150Tb (~100% in activity) and 151Tb (~30% in activity). The proposed method surpasses its counterparts by the high content of the target isotope in the natural mixture and the simplicity of the radiochemical separation of 149Tb from the bulk target material.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Moiseeva AN,Aliev RA,Unezhev VN,Zagryadskiy VA,Latushkin ST,Aksenov NV,Gustova NS,Voronuk MG,Starodub GY,Ogloblin AAdoi
10.1038/s41598-020-57436-6subject
Has Abstractpub_date
2020-01-16 00:00:00pages
508issue
1issn
2045-2322pii
10.1038/s41598-020-57436-6journal_volume
10pub_type
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