CAJ | 학술논문

为定量评价氚在结构材料和老龄贮氢材料内部的滞留量,用化学蚀刻法测定不锈钢内部氚浓度大小、分布情况及同位素交换后老龄贮氚铀床的氚滞留量.结果表明,贮氚13年的不锈钢样品中氚主要存在于样品内表面由表及里的120μm范围内,样品蚀刻深度110.6μm范围内,不锈钢的平均氚滞留量～9.37×10~(14)mmol/g,贮氚铀粉平均氚滞留量～4.16×10~(-5) mmol/g.该方法对测量金属中微量氚有较高灵敏度,可检测金属中残余氚的滞留量.
위정량평개천재결구재료화노령저경재료내부적체류량,용화학식각법측정불수강내부천농도대소、분포정황급동위소교환후노령저천유상적천체류량.결과표명,저천13년적불수강양품중천주요존재우양품내표면유표급리적120μm범위내,양품식각심도110.6μm범위내,불수강적평균천체류량～9.37×10~(14)mmol/g,저천유분평균천체류량～4.16×10~(-5) mmol/g.해방법대측량금속중미량천유교고령민도,가검측금속중잔여천적체류량.
In order to quantitatively evaluate residual tritium in structural materials and aged hydrogen storage materials, chemical etching is used to determine the concentration and distribution of tritium in stainless steel,and the residual tritium in aged uranium bed for tritium storage after isotope exchange.The results show that the stainless steel samples after 13 years of tritium storage retains tritium mainly in the surface layer of 120 μn,the average residual tritium concentration in stainless steel is about 9.37×1~(-4)mmol/g in the etching depth of 110.6 μm,and the average residual tritium concentration in uranium powder is about 4.16×10~(-5)mmol/g.Trace tritium in metals can be measured with high sensitivity and residual tritium can be correctly determined by using this method.