title: Study of an alpha track analysis and a fission track analysis for determining the hot particles contaminated with Pu and U isotopes.
abstract: 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.
authors.affiliation: Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute, Taejon, Republic of Korea. mhlee@kaeri.re.kr
authors.forename: M H
authors.initials: MH
authors.lastname: Lee
authors.forename: Y J
authors.initials: YJ
authors.lastname: Park
authors.forename: K Y
authors.initials: KY
authors.lastname: Jee
authors.forename: W H
authors.initials: WH
authors.lastname: Kim
authors.forename: Sue B
authors.initials: SB
authors.lastname: Clark
mesh_terms: D000512:Alpha Particles; D007554:Isotopes / Q000032:analysis; D018499:Linear Energy Transfer; D009680:Nuclear Fission; D010316:Particle Size; D011005:Plutonium / Q000032:analysis*; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D012990:Soil Pollutants, Radioactive / Q000032:analysis*; D014501:Uranium / Q000032:analysis*
chemical_list: D007554:Isotopes; D012990:Soil Pollutants, Radioactive; D014501:Uranium; D011005:Plutonium