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1. 发明申请

US20160203881A1 Process for the Accurate Characterization of Low Level Nuclear Waste 审中-公开
标题翻译：准确表征低级核废料的过程
公开(公告)号：US20160203881A1
公开(公告)日：2016-07-14
申请号：US14186536
申请日：2014-02-21
申请人： David W James , Tom Kalinowski
发明人： David W James , Tom Kalinowski
IPC分类号： G21C17/00 , G21F9/12 , G21C17/022 , G21F9/00
CPC分类号： G21C17/002 , G21C17/022 , G21C19/307 , G21F9/12
摘要： A method of accurately determining and quantifying the presence and concentration of various regulated radionuclides present in the filter material used to remove contaminants from the cooling water of a nuclear reactor. Multiple samples of the reactor cooling water are taken and the presence and concentration of directly measurable fission produced radionuclides and their related isotopes are determined. The release rate of radioactivity from the reactor as a function of the removal rate of the filter material is determined at equilibrium. The presence and the concentration of difficult to detect fission produced regulated isotopes as a function of release rates of the directly measurable fission produced isotopes are then calculated. The total concentration of activation produced regulated isotopes is based on measured surrogate isotopes. A running total of the concentration of the directly and difficult to detect fission produced regulated isotopes and of the activation produced regulated isotopes accumulated in the filter material is calculated and retained over a defined period of time. The contribution of any regulated radionuclides from secondary sources such as a spent fuel pool can also be measured and added to the total of the fission and activation produced radionuclides in the filter material.
摘要翻译：准确地确定和定量存在于用于从核反应堆的冷却水中除去污染物的过滤材料中的各种调节放射性核素的存在和浓度的方法。采取反应堆冷却水的多个样品，并确定直接可测量裂变的存在和浓度产生放射性核素及其相关同位素。在平衡时确定作为过滤材料去除速率的函数的来自反应器的放射性的释放速率。然后计算难以检测裂变的存在和浓度产生的调节同位素作为可直接测量的裂变产生的同位素的释放速率的函数。产生调节同位素的总活化浓度是基于测量的替代同位素。直接和难以检测裂变的浓度的运行总计在过滤材料中累积的调节同位素和激活产生的调节同位素的计算和保留在一段确定的时间内。任何受调节的放射性核素来自次级来源（如乏燃料池）的贡献也可以被测量并添加到过滤材料中产生的放射性核素的裂变和活化的总和中。

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