This study determines the optimum temperature for the alkali fusion process used to effectively separate iodine from solidified radwaste attaining low-level ¹²⁹I by neutron activation. The alkali fusion temperature was adjusted to 120, 200, and 400 °C to approach the optimum conditions associated with a good statistical distribution of the measured ¹²⁹I data and high chemical recovery yield. Statistical analysis revealed that the optimum temperature of the alkali fusion process was 200 °C, displaying good central tendency and low variance of the measured ¹²⁹I data, and the respective chemical recovery yields were higher than other temperatures. The optimum fusion condition provides more reliable scaling factors (¹²⁹I/¹³⁷Cs) of radwaste.

这项研究确定了碱聚变过程的最佳温度，该过程用于从通过中子活化获得低水平¹²⁹ I 的固化放射性废物中有效分离碘。将碱熔温度调整为 120、200 和 400 °C，以接近与测得的¹²⁹ I 数据的良好统计分布和高化学品回收率相关的最佳条件。统计分析表明，碱熔过程的最适温度为200 ℃，¹²⁹ I实测数据显示出良好的集中趋势和低方差，各自的化学回收率均高于其他温度。最佳融合条件提供更可靠的缩放因子 ( ¹²⁹ I/ ¹³⁷Cs) 的放射性废物。