Study of an alpha track analysis and a fission track analysis for determining the hot particles contaminated with Pu and U isotopes

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• 作者：M.H. Lee ; Y.J. Park ; K.Y. Jee ; W.H. Kim ; Sue B. Clark
• 关键词：Hot particles ; Fission track analysis ; Alpha track analysis ; Contaminated soil
• 刊名：Applied Radiation and Isotopes
• 出版年：2007
• 出版时间：January 2007
• 年：2007
• 卷：65
• 期：1
• 页码：85-91
• 全文大小：574 K

文摘

A fission track analysis and alpha track analysis were developed to detect fissile particles such as uranium and plutonium isotopes as well as to identify particle-bound plutonium in contaminated soil or sediment. To record a reference point, a locator SEM grid electroplated with boron was used to obtain a recorded grid image on the Lexan or CR-39 detector. With the fission track technique, the track images of the grid coated with boron and the fissile nuclides on the CR-39 detector were clearly recorded so that the location of the fissile particles could be easily identified in the radio-contaminated soil matrix. With the alpha track technique, many of the hot particles in the BOMARC soil turned out to be contaminated with plutonium isotopes rather than uranium isotopes.