Formation of Sc radioisotopes under the irradiation of titanium of natural isotopic composition by bremsstrahlung photons with energies up to 55 MeV was studied. The yield of 47Sc is 5·105 Bq/μA h (g/cm2). Inevitable impurities are 46Sc and 48Sc (1.5% and 9.1% of 47Sc radioactivity at EOB, respectively). 47Sc was separated by extraction chromatography on a DGA resin in HNO3 and HCl media. The separation procedure takes about 2 h, the radiochemical efficiency was > 97%. The result was compared with other photonuclear experiments on titanium nuclei. It is shown that the photonuclear method can be used for the production of therapeutic amounts of 47Sc.

中文翻译：

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医学相关放射性核素 47Sc 的光核生产

研究了在能量高达 55 MeV 的轫致辐射光子的天然同位素组成的钛的照射下，Sc 放射性同位素的形成。47Sc 的产率为 5·105 Bq/μA h (g/cm2)。不可避免的杂质是 46Sc 和 48Sc（分别为 EOB 时 47Sc 放射性的 1.5% 和 9.1%）。47Sc 通过在 HNO3 和 HCl 介质中的 DGA 树脂上的萃取色谱分离。分离过程大约需要 2 小时，放射化学效率 > 97%。结果与钛核上的其他光核实验进行了比较。结果表明，光核方法可用于产生治疗量的 47Sc。