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Atomic Data for Injected Impurities in Fusion Plasmas
Open for proposals
Project Type
Project Code
F43026CRP
2340Approved Date
Status
Start Date
Expected End Date
Participating Countries
Description
This proposed CRP will aim to provide evaluated data and to coordinate relevant research activities in order to better understand and predict the behaviour of the impurities that are deliberately injected into the plasmas of experimental nuclear fusion devices. The purpose of such "impurity seeding" is to mitigate the damage that such plasmas can cause to wall and component materials during the disruptive events that are known to occur during the operation of a fusion reactor. Impurity seeding in the edge region of the plasma is also used to promote the operation of the reactor in the "high confinement regime": in this mode of operation, high power output is achievable through the efficient generation of fusion neutrons which are necessary for generating heat and, in turn, electrical energy in a power plant.
Objectives
To increase the capacity of IAEA Member States to undertake experimental and theoretical nuclear fusion energy research. This CRP supports the development of practical strategies to mitigate the damage that plasma can cause to wall and component materials during during high-power operations and disruptive off-normal events. It does this by enhancing of the global knowledge base on the collisional and radiative properties of various impurity species that are deliberately injected into the edge plasma region of such devices.
Specific objectives
Assemble, evaluate and recommend the data needed for modelling the behaviour of impurity species in the edge plasma region of magnetic-confinement fusion reactors.
Coordinate code comparison activities to compare calculations of relevant atomic and molecular data by different computational techniques and to assess the sensitivity of edge plasma modelling codes in their use of these data to the predicted effect on plasma behaviour.
To the greatest extent possible, to aggregate experimental data on impurity seeding to facilitate the evaluation of the fundamental atomic and molecular data and the plasma modelling codes that use it.
Conduct a thorough bibliographic review on the status of data relevant to the CRP, for inclusion in the IAEA's AMBDAS and ALADDIN databases.