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JAEA Reports

Assessment report of research and development on "The Abolition measures of nuclear facilities and associated technology development" and "Radioactive waste treatment and disposal and associated technology development" (Interim report)

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.

JAEA Reports

Rehabilitation experiment by phytoremediation using lawn grass

Fukushima Environmental Safety Center, Headquarters of Fukushima Partnership Operations; Nigyo-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.

JAEA Reports

Medium and long term plan for decommissioning of nuclear facility and treatment and disposal of low level radioactive waste in JAEA

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.

JAEA Reports

Assessment report of research and development on "Nuclear Facilities Decommissioning Program" and "Radioactive Waste Treatment and Disposal Program" (Interim report)

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.

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