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Nuclear Cycle Backend Directorate
JAEA-Evaluation 2014-002, 182 Pages, 2014/07
JAEA-Evaluation-2014-002.pdf:101.85MB
Japan Atomic Energy Agency (JAEA) consulted the "Evaluation Committee for Nuclear Cycle Backend Program Promotion" to performed the interim evaluation of "The abolition measures of nuclear facilities and associated technology development" project and "radioactive waste treatment and disposal and associated technology development" project in accordance with the "Guideline for evaluation of government R&D activities", the "Guideline for evaluation of R&D in Ministry of Education, Culture, Sports, Science and Technology (MEXT)" and the "Operational rule for evaluation of R&D activities" by JAEA. In response to JAEA's request, the Committee decided the evaluation method and performed the interim evaluation of both projects from the viewpoints of purposes, plans, results and soon. As a result of review, the Committee concluded that both projects were proceeded adequately.
Fukushima Environmental Safety Center, Headquarters of Fukushima Partnership Operations; Ningyo-toge Environmental Engineering Center; Fuel Cycle Safety Research Unit, Nuclear Safety Research Center; Geological Isolation Research Unit, Geological Isolation Research and Development Directorate; Nuclear Cycle Backend Directorate
JAEA-Research 2012-019, 125 Pages, 2012/08
JAEA-Research-2012-019.pdf:12.81MB
Measures against environmental contamination by radioactive materials originated from the Fukushima nuclear accident (May, 2011), are being conducted in Fukushima and surrounding prefectures. Regarding to the measures, a phytoremediation experiment with several types of lawn grasses in a field scale have been carried out. Lawn grasses are generally characterized by shallow rizosphere, high density and root mat formation. Decontamination effectiveness of radioactive cesium by plant uptake and by sod removing was investigated. As a result, the range of decontamination factors by plant uptake was below than 1% because of low transfer rate form soil to plant. On the other hand, maximum decontamination factor by sod removing reached about 100%. Decontamination activities with various methods will be implemented according to the national decontamination policy and related plans in each municipality. The phytoremediation method with lawn grass would be applicable in limited circumstances.
Policy Planning and Administration Department; Nuclear Cycle Backend Directorate
JAEA-Technology 2012-028, 71 Pages, 2012/07
JAEA-Technology-2012-028.pdf:9.75MB
In the second medium term (2010-2015) plans of JAEA, effective and reasonable medium and long term plan for decommissioning of nuclear facility and treatment and disposal of low level radioactive waste in JAEA, based on the premise of safety assurance, is to be formulated by the end of March, 2012. This medium and long term plan is the plan targeting the period over next ten years based on the prospect of the long term waste management from waste generation to waste disposal, and is mainly referred to decommissioning, clearance, waste treatment, waste storage and R&D works. JAEA will be carried out practical work for treatment and disposal of the radioactive waste based on this plan, and also the updating of this plan will be made flexibly according to consideration situation of new framework for nuclear energy policy by the Atomic Energy Commission, technology advance and progress situation of laws and regulations.
Kitamura, Koichi; Rindo, Hiroshi; Hasegawa, Makoto; Shimomura, Atsuhiko; Nuclear Cycle Backend Co-ordination Office
JAEA-Technology 2012-008, 57 Pages, 2011/11
JAEA-Technology-2012-008.pdf:1.47MB
The management plan is intended to summarize the process of Low level Radioactive Waste in JAEA from its generation to its treatment and disposal. Reasonable implementation of treatment and disposal for the radioactive waste on ensuring security was taken into account when the plan was made or updated based on the Framework for Nuclear Energy Policy made by Japan Atomic Energy Commission in 2005, the progress situation of laws and regulations, safety guides. Moreover, the issues to be solved during the process of implementation the plan were summarized, they will be studied in the plan, and then, its solutions will be reflected in the research program and project. JAEA will be carried out practical work for treatment and disposal of the radioactive waste based on the plan. Then, the updating will be made flexibly according to technology advance and progress situation of laws and regulations.
Nuclear Cycle Backend Directorate
JAEA-Evaluation 2009-002, 151 Pages, 2009/07
JAEA-Evaluation-2009-002.pdf:22.86MB
Japan Atomic Energy Agency (JAEA) consulted the "Evaluation Committee of Nuclear Cycle Backend Program Promotion" to assess the issues on "Nuclear facilities decontamination program" and "Radioactive waste treatment and disposal program" in accordance with the "Guideline for evaluation for the evaluation of government R&D activities", the "Guideline for evaluation of R&D in Ministry of Education, Culture, Sports, Science and Technology (MEXT)" and the "Operational rule for evaluation of R&D activities" by JAEA. In response to JAEA's request, the Committee assessed the project plan and execution method of both projects. As a result of review, the Committee concluded that nuclear facilities decommissioning program is reasonable, and nuclear waste treatment and disposal program is almost reasonable in accordance with the evaluation method having been decided by the Committee.