Production of a Short-Lived Therapeutic α-Emitter 149Tb by Irradiation of Europium by 63 MeV α-Particles

Autor: V. I. Novikov, S. T. Latushkin, V. N. Unezhev, V. A. Zagryadskiy, A. G. Kazakov, A. N. Moiseeva, R. A. Aliev
Rok vydání: 2021
Předmět:
Zdroj: Atomic Energy. 129:337-340
ISSN: 1573-8205
1063-4258
Popis: 149Tb is currently considered to be a promising α-emitting isotope radioimmunotherapy. It is shown that it can be obtained without the use of a carrier by irradiating a target consisting of Eu2O3 with 4He with energy 63 MeV. After irradiation, radiochemical separation of terbium radioisotopes was performed in a time not exceeding the half-life of 149Tb (4.12 h). It was based on reductive co-precipitation of europium and extraction-chromatographic purification. The obtained product, including 149Tb and the associated terbium radioisotopes, were analyzed by means of alpha- and gamma-spectrometry. It was concluded that the combination and sequence of approaches used in this work allow rapid production of short-lived 149Tb and the use of the technological route implemented in this work in practice.
Databáze: OpenAIRE