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METHOD FOR REDUCING RADIONUCLIDE BY CONCENTRATING IN NITROGEN ISOTOPE IN STEEL OR FERRITIC STEEL

机译：富集铁或铁素体钢中氮同位素降低放射性核素的方法

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摘要

PPROBLEM TO BE SOLVED: To obtain a material classified into a low-level radioactive waste material (LLM) which means that spent reactor structural materials can be buried shallowly by reducing the yield of carbon 14 generated through radiation irradiation in steel or ferritic steel, a reactor structural material of a nuclear fusion reactor. PSOLUTION: When the concentration of carbon 14, a product radionuclide, is evaluated if nitrogen 15 is concentrated to 95% by reducing the concentration of nitrogen 14 in steel or ferritic steel and the operation period and the availability factor are assumed to be 30 years and 50% respectively; the concentration of carbon 14 can be diminished below 3.710SP7/SPBq/kg, the reference value for the shallow burial of carbon 14. PCOPYRIGHT: (C)2008,JPO&INPIT

机译：

要解决的问题：要获得分类为低放射性废料（LLM）的材料，这意味着可以通过减少钢或铁素体的辐射辐照产生的碳14的收率，将反应堆用过的结构材料浅埋。钢，是核聚变反应堆的反应堆结构材料。

解决方案：如果通过降低钢或铁素体钢中氮14的浓度将氮15浓缩至95％，则评估了产物14放射性核素碳14的浓度，并假定运行时间和利用率为30年和50％;碳14的浓度可以降低到3.710 7 Bq / kg以下，这是碳14浅埋的参考值。

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公开/公告号JP2008064641A

专利类型
公开/公告日2008-03-21

原文格式PDF
申请/专利权人 JAPAN ATOMIC ENERGY AGENCY;
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申请/专利号JP20060243587
发明设计人 HAYASHI TAKAO;SAWAI TOMOJI;KASADA RYUTA;
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申请日2006-09-08
分类号G21B1/11;G21B1/17;G21B1/13;G21C13/08;C21C7;
国家 JP
入库时间 2022-08-21 20:24:42

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