Experimental Study and Numerical Simulation of Material Migration in the VISIONI Plasma Simulator

Research output: ThesisDoctoral thesis

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@phdthesis{336de1a260134973917e6b3bd5e8eb73,
title = "Experimental Study and Numerical Simulation of Material Migration in the VISIONI Plasma Simulator",
abstract = "The impending energy crisis is one of the toughest problems mankind will have to face in the near future. Thermonuclear fusion is a promising alternative sustainable energy source. However, there are still several obstacles on the road towards the first power plant. One of the issues is material migration caused by impact of plasma particles on the inner reactor materials. It is of primordial importance to get a better understanding of erosion and deposition to make reliable predictions for future devices. During the first part material migration experiments in the TEXTOR tokamak at Forschungszentrum J{\"u}lich were simulated with the ERO impurity transport code. This study demonstrated the importance of enhanced re-erosion of deposited species for future thermonuclear fusion reactors. This enhanced re-erosion was studied further in the second part by similar studies in the VISIONI plasma simulator at the Belgian Nuclear Research Centre. The magnetic field and the plasma in VISIONI were first characterized by combining analytical calculations, measurements and computer simulations. This allowed the development of a new version of ERO for VISIONI. Eventually material migration experiments were performed in VISIONI and simulated with the new version of ERO, contributing to a better understanding of the enhanced re-erosion.",
keywords = "fusion, VISIONI, tokamak, plasma, plasma-material interaction, simulation, experiment, Langmuir probe, Monte Carlo, ion source",
author = "{Van Hoey}, Olivier and Inge Uytdenhouwen and Johan Schuurmans",
note = "Score = 30",
year = "2014",
month = "9",
day = "25",
language = "English",
isbn = "978-90-8578-728-0",
publisher = "UGent - Universiteit Gent",
address = "Belgium",
school = "UGent - Universiteit Gent",

}

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TY - THES

T1 - Experimental Study and Numerical Simulation of Material Migration in the VISIONI Plasma Simulator

AU - Van Hoey, Olivier

A2 - Uytdenhouwen, Inge

A2 - Schuurmans, Johan

N1 - Score = 30

PY - 2014/9/25

Y1 - 2014/9/25

N2 - The impending energy crisis is one of the toughest problems mankind will have to face in the near future. Thermonuclear fusion is a promising alternative sustainable energy source. However, there are still several obstacles on the road towards the first power plant. One of the issues is material migration caused by impact of plasma particles on the inner reactor materials. It is of primordial importance to get a better understanding of erosion and deposition to make reliable predictions for future devices. During the first part material migration experiments in the TEXTOR tokamak at Forschungszentrum Jülich were simulated with the ERO impurity transport code. This study demonstrated the importance of enhanced re-erosion of deposited species for future thermonuclear fusion reactors. This enhanced re-erosion was studied further in the second part by similar studies in the VISIONI plasma simulator at the Belgian Nuclear Research Centre. The magnetic field and the plasma in VISIONI were first characterized by combining analytical calculations, measurements and computer simulations. This allowed the development of a new version of ERO for VISIONI. Eventually material migration experiments were performed in VISIONI and simulated with the new version of ERO, contributing to a better understanding of the enhanced re-erosion.

AB - The impending energy crisis is one of the toughest problems mankind will have to face in the near future. Thermonuclear fusion is a promising alternative sustainable energy source. However, there are still several obstacles on the road towards the first power plant. One of the issues is material migration caused by impact of plasma particles on the inner reactor materials. It is of primordial importance to get a better understanding of erosion and deposition to make reliable predictions for future devices. During the first part material migration experiments in the TEXTOR tokamak at Forschungszentrum Jülich were simulated with the ERO impurity transport code. This study demonstrated the importance of enhanced re-erosion of deposited species for future thermonuclear fusion reactors. This enhanced re-erosion was studied further in the second part by similar studies in the VISIONI plasma simulator at the Belgian Nuclear Research Centre. The magnetic field and the plasma in VISIONI were first characterized by combining analytical calculations, measurements and computer simulations. This allowed the development of a new version of ERO for VISIONI. Eventually material migration experiments were performed in VISIONI and simulated with the new version of ERO, contributing to a better understanding of the enhanced re-erosion.

KW - fusion

KW - VISIONI

KW - tokamak

KW - plasma

KW - plasma-material interaction

KW - simulation

KW - experiment

KW - Langmuir probe

KW - Monte Carlo

KW - ion source

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_137011

M3 - Doctoral thesis

SN - 978-90-8578-728-0

PB - UGent - Universiteit Gent

CY - Ghent, Belgium

ER -

ID: 143436