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同位素稀释-热电离质谱法测定乏燃料中裂变产物121Sn和126Sn
锡 裂变产物 乏燃料元件 同位素稀释-热电离质谱法
2013/9/22
乏燃料样品基体复杂、具有放射性，裂变产物锡含量低，难以准确测定。本研究以天然锡（Sn）标准溶液为稀释剂，采用同位素稀释-热电离质谱法测定乏燃料元件中121Sn和126Sn裂变产物的含量。热电离质谱测量时采用硅胶锡磷酸涂样，优化选择电离带升温速率和温度保持时间，利用阻滞电位四极杆（RPQ）跳峰对13个质量数信号进行数据采集，有效扣除了Te、Sb、CaPO3+多个同量异位素的干扰，获得了ng/g级...
Determination of the number of atoms of the long-lived nuclide 126Sn by γ-ray spectrometry
126Sn activity measurement γ-ray spectrometry AMS
2009/12/24
By using HPGe γ-ray spectrometry, the activity of the long-lived fission product 126Sn in a SnOB2 sample was measured. The number of 126Sn atoms and the ratio of 126Sn to Sn were calculated based on t...