Radioactive contamination in concrete/mortar, metal-pipe and area-soil of JPDR
Creators
- 1. Research Association for Nuclear Facility Decommissioning, Tokai, Ibaraki (Japan)
Description
Radioactive contamination was measured to study on separation between contaminated and non-contaminated parts in structural materials of JPDR. The materials are the building concrete/mortar, the metal-pipe and the area-soil. In addition to the measurement, diffusion behavior in the concrete/mortar was also studied on two kinds of radioactive elements, 60Co and 134Cs. It was known that the contamination in the concrete and the soil have penetration depths over which the radioactivity can not be detected any more. The metal-pipe was easily decontaminated by the electrical decomposition in phosphoric or sulfuric acid solution. The results obtained from the study indicate that the contaminated part in the decommissioning wastes of the reactor can be safely separate from the non-contaminated. (author)
Additional details
Publishing Information
- Journal Title
- Dekomisshoningu Giho
- Journal Issue
- no.15
- Journal Page Range
- p. 59-69.
- CODEN
- DGIHE6
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 28043048
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- CESIUM 137; COBALT 60; CONCRETES; CONTAMINATION; DECONTAMINATION; DIFFUSION; JPDR REACTOR; MORTARS; PIPES; RADIATION PROTECTION; RADIOACTIVE WASTES; RADIOACTIVITY; REACTOR DECOMMISSIONING; SOILS
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BUILDING MATERIALS; BWR TYPE REACTORS; CESIUM ISOTOPES; CLEANING; COBALT ISOTOPES; DECOMMISSIONING; ENRICHED URANIUM REACTORS; EXPERIMENTAL REACTORS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MATERIALS; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; POWER REACTORS; RADIOACTIVE MATERIALS; RADIOISOTOPES; REACTORS; RESEARCH AND TEST REACTORS; THERMAL REACTORS; WASTES; WATER COOLED REACTORS; WATER MODERATED REACTORS; YEARS LIVING RADIOISOTOPES