ISO 11483:2005 核燃料技术 α光谱测定法测定Pu238/Pu239同位素比率及钚源的制备.
标准编号：ISO 11483:2005
中文名称：核燃料技术 α光谱测定法测定Pu238/Pu239同位素比率及钚源的制备.
英文名称：Nuclear fuel technology — Preparation of plutonium sources and determination of 238Pu/239Pu isotope ratio by alpha spectrometry
发布日期：2005-01
标准范围
ISO 11483:2005描述了制备钚源的三种简单快速的程序和一种通过α光谱法测量238Pu与（239Pu+240Pu）活度比的程序。将α谱法与质谱联用用于238Pu同位素丰度的测定，消除了后一种方法中238U可能存在的干扰。它适用于分析每毫升含有50微克至200微克钚的2摩尔/升至4摩尔/升硝酸中的钚纯化溶液，这可能是通过质谱法进行钚同位素分析之前的化学处理和纯化产生的。
ISO 11483: 2005 describes three simple and fast procedures to prepare plutonium sources and a procedure to measure the activity ratio of 238Pu to (239Pu + 240Pu) by alpha spectrometry. The alpha spectrometry method is used for the determination of isotopic abundance of 238Pu in combination with mass spectrometry and eliminates the possible interferences of 238U in the latter method. It applies to the analysis of purified solutions of plutonium in 2 mol/l to 4 mol/l nitric acid containing 50 micrograms to 200 micrograms of plutonium per millilitre, as may result from the chemical treatment and purification preceding plutonium isotopic analysis by mass spectrometry.
标准预览图
