Lee M H, Park Y J, Jee K Y, Kim W H, Clark Sue B
Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute, Taejon, Republic of Korea.
Appl Radiat Isot. 2007 Jan;65(1):85-91. doi: 10.1016/j.apradiso.2006.06.012. Epub 2006 Aug 23.
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.
开发了裂变径迹分析和α径迹分析，以检测铀和钚同位素等裂变粒子，并识别受污染土壤或沉积物中与粒子结合的钚。为记录参考点，使用镀硼的定位扫描电子显微镜网格在Lexan或CR-39探测器上获取记录的网格图像。利用裂变径迹技术，CR-39探测器上涂有硼的网格和裂变核素的径迹图像被清晰记录，从而可以在放射性污染的土壤基质中轻松识别裂变粒子的位置。利用α径迹技术，结果发现BOMARC土壤中的许多热粒子被钚同位素而非铀同位素污染。
