医用同位素数据库

利用加速器产生的带电粒子核反应和利用反应堆中子核反应来生产医用放射性同位素，是两种最重要的方法；带电粒子核反应激发函数库则是其应用所需的基本核数据库之一。该库包括48个反应的评价截面以及厚靶产额, 它们是由入射能量直到几千万电子伏特(最高一亿电子伏特)的轻带电粒子引起的。大多数重要的诊断用的放射性同位素的产生截面以及厚靶产额都给出了, 其中有专用于伽玛射线辐射体( gamma emitters)生产的 16 个反应, 和专用于正电子辐射体(positron emitters)生产的 10 个反应。此外, 还给出了 22个束流监督反应(beam monitor reactions)截面, 它们分别是由质子、氘、氚、氦－3 和阿尔法粒子引起的。Two of the most critical approaches for producing medical radioisotopes are charged-particle nuclear reactions driven by accelerators and neutron nuclear reactions in nuclear reactors. The charged-particle nuclear reaction excitation function library is one of the essential nuclear databases required for applications of these production methods. This library includes evaluated cross-sections and thick-target yields for 48 reactions induced by light charged particles with incident energies up to tens of millions of electron volts (up to a maximum of 100 million electron volts). Production cross-sections and thick-target yields for most clinically important diagnostic radioisotopes are provided, including 16 reactions dedicated to the production of gamma-ray emitters and 10 reactions dedicated to the production of positron emitters. Additionally, cross-sections for 22 beam monitor reactions induced by protons, deuterons, tritons, helium-3 nuclei, and alpha particles are also provided.

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背景与挑战

背景概述

医用同位素数据库是一个包含48个医用放射性同位素反应评价截面和厚靶产额的数据集，涵盖多种诊断用同位素，由中国原子能科学研究院通过计算模拟方式创建，数据量为7MB。