Accelerator Simulation and Theoretical Modelling of Radiation Effects - SMoRE-II

Closed for proposals

Project Type

Coordinated Research Project

Project Code

T14003

CRP

2154

Approved Date

2016.04.22

Status

3 - Active - Ongoing

Start Date

2016.09.22

Expected End Date

2020.09.21

Participating Countries

Australia
Belgium
France
Germany
India
Japan
Russian Federation
Spain
Ukraine
United Kingdom of Great Britain and Northern Ireland
United States of America

Description

To develop structural materials for advanced reactor concepts and life extension of existing reactors will require a new paradigm for irradiation testing of candidate materials. This new paradigm is accelerator-based ion irradiation. Establishment of its efficacy will be accomplished through the use of standardized testing, to establish confidence in ion irradiation results between various laboratories, and to verify agreement between neutron and ion irradiated property-controlling microstructures. A Round Robin to fabricate and distribute selected materials for ion irradiation and post-irradiation examination will be a focus of this CRP. It is through this mechanism that (i) the degree of interlaboratory variation will be quantified and (ii) a direct comparison of ion beam to reactor irradiations will be made. The results from this CRP should lead to recommendations for best practices in the use of ion beam research for the emulation of in-reactor damage to materials. Several important questions regarding the behaviour of selected structural materials under irradiation will also be addressed by the CRP participants, which may include understanding the dose-rate effect of accelerator irradiations, understanding the primary damage state of different irradiation conditions, and investigation of microstructure changes during the incubation period (e.g. of void swelling). In comparing ion and neutron irradiated property-controlling microstructures, the following may be addressed: determination of analysis procedures and criteria for comparing ion irradiation to neutron irradiation, conducting ion irradiation of previously neutron-irradiated materials, conducting very high dose/high-temperature ion irradiations for future reactor applications, comparing ion and neutron irradiation within a steady state microstructure.

Objectives

Development of best practices for conducting ion irradiations for the design of new materials for existing and future reactors

Specific objectives

Improved knowledge of the nature of radiation damage in candidate structural materials for reactors on the basis of ion irradiation and modelling of its effects

Intercomparison of the results of different ion irradiations conducted across the CRP and the development of recommendation on improved best practices.

Quantification of the degree of agreement between microstructures generated by ion and neutron irradiation.

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