title: Carbon-14 analysis in solidified product of non-metallic solid waste by a combination of alkaline fusion and gaseous CO2 trapping.
abstract: In order to establish a simple and rapid analytical method for (14)C in solidified products made from non-metallic low-level radioactive solid wastes such as concrete, mortar and glass by melting treatment, a radiochemical analysis in combination with alkaline fusion as a sample decomposition method was examined. A simulated solidified product containing (14)C, which was prepared by using nuclear reaction (14)N(n, p)(14)C with thermal neutron irradiation, was analyzed by the present method to compare with a conventional radiochemical analysis using oxidizing combustion. The reproducible and quantitative recovery of (14)C from the simulated solidified product indicates that the present method is more efficient for (14)C analysis in solidified products than the conventional method using oxidizing combustion.
authors.affiliation: Nuclear Cycle Backend Technology Development Unit, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan. ishimori.kenichiro@jaea.go.jp
authors.forename: Ken-ichiro
authors.initials: K
authors.lastname: Ishimori
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Kameo
authors.forename: Hideaki
authors.initials: H
authors.lastname: Matsue
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Ohki
authors.forename: Mikio
authors.initials: M
authors.lastname: Nakashima
authors.forename: Kuniaki
authors.initials: K
authors.lastname: Takahashi
mesh_terms: D002245:Carbon Dioxide / Q000302:isolation & purification; D002250:Carbon Radioisotopes / Q000032:analysis*; D003252:Construction Materials; D011850:Radioactive Waste; D012037:Refuse Disposal / Q000379:methods*
chemical_list: D002250:Carbon Radioisotopes; D011850:Radioactive Waste; D002245:Carbon Dioxide