Decommissioning Science Diagram mainly forbasic and fundamental R&D

Pursuit of basic and fundamental research will lead to solution of issues

Preparation

DesignApplied and practical research and development will lead to the solution of issues

ActionBasic and Fundamental Research will lead to accumulation of knowledge

Outline of Decommissioning Workflow

Basic and Fundamental Research may lead to knowledge acquisition in the future

Overall Strategy to Rationally Proceed with Decommissioning（Entire process optimization, Risk management, Economic rationality）
Fuel Removal from SFP

Fuel Debris Retrieval

Understanding current status
Sorting fuel debris
Confinement ofradioactive material

Confinement of radioactive material

Understanding conditions
inside reactor vessel

Improving work environment

Strategy and risk

Retrieval method andsystem

RetrievalContaminated Water Management
Groundwaterandcontaminatedwater
management
and reduction

Structural integrity

Criticality Prevention/Cool/Hydrogen（maintaining stable conditions）

RemovalUnder
standing
current
statusUnderstanding conditions
inside building

Dismantling PCV/RPV/Buildings

Water
treatment

Structural integrity

Waste＆Management

Dismantling

Dismantled wastesorting criteria
Dismantlingscenario

Understanding
currentstatusDecontamination

Processing/Disposal/Environment Remediation

Transport/Storing/Storage(including Wastes containing Alpha Nuclides originating from Fuels)

Clearance
Disposal
Environmental
remediation

Fundamental
Research ofTechnology

Waste reduction
and conditioning

Disposalconcept

Waste package qualification(including Wastes containing Alpha
Nuclides originating from Fuels)

Characterization 1

Maintaining stable conditions

Characterization
2

Transport・storing・storage

Environmental dynamics

Remote Control

Visualization

Measurement and analysis

Standardization

Risk assessment

Knowledge management

Radiation resistanceFundamental Research of Society〇Legislation 〇HR development 〇Coexistence with local community〇Dispatch of information 〇Ensuring sustainability〇Working environment management

Decommissioning Science Diagram mainly forbasic and fundamental R&D

Preparation

DesignAction

Outline of Decommissioning Workflow

Overall Strategy to Rationally Proceed with Decommissioning（Entire process optimization, Risk management, Economic rationality）
Fuel Removal from SFP

Fuel Debris Retrieval

Understanding current status
Sorting fuel debris
Confinement ofradioactive material

Confinement of radioactive material

Understanding conditions
inside reactor vessel

Improving work environment

Strategy and riskRetrieval method andsystemRetrievalContaminated Water Management
Groundwater
andcontaminatedwater
management
and reduction

Structural integrity

Criticality Prevention/Cool/Hydrogen（maintaining stable conditions）

RemovalUnderstanding
current
statusUnderstanding conditions
inside building

Dismantling PCV/RPV/Buildings

Water
treatment

Structural integrity

Waste＆Management

Dismantling

Dismantled wastesorting criteria
Dismantlingscenario

Understanding
current
status

Decontamination

Processing/Disposal/Environment Remediation

Transport/Storing/Storage(including Wastes containing Alpha Nuclides originating from Fuels)

Clearance
Disposal
Environmental
remediation

Fundamental
Research ofTechnology

Waste reductionand conditioning

Disposalconcept

Waste package qualification(including Wastes containing Alpha
Nuclides originating from Fuels)

Characterization 1

Maintaining stable conditions

Characterization
2

Transport・storing・storage

Environmental dynamics

Remote Control

Visualization

Measurement and analysis

Standardization

Risk assessment

Knowledge management

Radiation resistanceFundamental Research of Society〇Legislation 〇HR development 〇Coexistence with local community〇Dispatch of information 〇Ensuring sustainability〇Working environment management