Abstract We discuss the possibility of producing M 99 o radioisotope using an electron beam accelerated in the linac injector of the SOLARIS synchrotron. M 99 o with a half-life of 65.94 h, is a parent of the medically important radioisotope T 99 m c ( T 1 / 2 = 6 h ) . In our study M 99 o was produced from M nat o ( γ , x ) reaction using Bremsstrahlung γ radiation generated by 60, 100 and 200 MeV electron beams hitting a tungsten radiator located in front of the target. The activity of M 99 o was analysed by off-line γ spectroscopy using a HPGe detector. Auxiliary Monte-Carlo simulations were performed to determine the flux and energy distribution of the Bremsstrahlung photons. The activity thus obtained is high enough to consider the feasibility for commercial purposes of the production of M 99 o through photo-nuclear reactions. Apart from the reaction of interest, the activity of other long-lived radioactive impurities produced from M nat o ( γ , x ) reactions were determined.

中文翻译：

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使用电子束研究 M99o 和在 Mnato(γ,x) 反应中产生的长寿命杂质

摘要 我们讨论了使用在 SOLARIS 同步加速器的直线加速器喷射器中加速的电子束产生 M 99 o 放射性同位素的可能性。M 99 o 的半衰期为 65.94 小时，是医学上重要的放射性同位素 T 99 mc (T 1 / 2 = 6 h) 的母体。在我们的研究中，M 99 o 是通过使用由 60、100 和 200 MeV 电子束撞击位于目标前面的钨辐射器而产生的轫致辐射 γ 辐射的 M nat o ( γ , x ) 反应产生的。M 99 o 的活性通过使用HPGe检测器的离线γ光谱分析。执行辅助蒙特卡罗模拟以确定轫致辐射光子的通量和能量分布。如此获得的活性足以考虑通过光核反应生产M 99 o 的商业目的的可行性。