Design and qualification of a ceramic insulating break for ITER In-Vessel Coils

Davide Macioce; Alexander Vostner; Cristina Jimenez Aguinaga; Xabier Gomez Mitxelena; Miguel Angel Lagos Gomez; Igor Rueda Salazar; Roberto San Martín Ruiz; Ignacio Aviles Santillana

doi:10.1016/j.fusengdes.2025.115112

Design and qualification of a ceramic insulating break for ITER In-Vessel Coils

Davide Macioce^*
, Alexander Vostner
, Cristina Jimenez Aguinaga
, Xabier Gomez Mitxelena
, Miguel Angel Lagos Gomez
, Igor Rueda Salazar
, Roberto San Martín Ruiz
, Ignacio Aviles Santillana

^*Corresponding author for this work

Materials for extreme conditions

ITER
Parque Científico y Tecnológico de Bizkaia
CERN

Research output: Contribution to journal › Article › peer-review

Abstract

The ITER In-Vessel Coils (IVC) are water-cooled coils, composed by a mineral-insulated copper conductor, enclosed in a stainless-steel jacket. The system is installed inside the ITER Vacuum Vessel, and it is fed by high-voltage feedthroughs that provide electrical power and cooling water to the copper conductors. Each coil is cooled individually and has dedicated inlet/outlet stainless-steel pipes in the ex-vessel area. To electrically separate the IVC from the ITER cooling water system, an electrical insulating break is needed. The IVC Insulating Break (IB) is operated in a radiation environment and at temperatures up to 240 °C. It shall provide electrical insulation up to 2.4 kV and shall withstand cooling water pressure up to 44 bar as well as mechanical and thermal loads related to the ITER IVC operations.

Original language	English
Article number	115112
Journal	Fusion Engineering and Design
Volume	216
DOIs	https://doi.org/10.1016/j.fusengdes.2025.115112
Publication status	Published - Jul 2025

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Fusion Technology (A)
ITER (E)
Insulating breaks (B)
Magnets (D)
Vacuum brazing (C)

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@article{28ae13a3fea248bcb296b1e1de365e42,

title = "Design and qualification of a ceramic insulating break for ITER In-Vessel Coils",

abstract = "The ITER In-Vessel Coils (IVC) are water-cooled coils, composed by a mineral-insulated copper conductor, enclosed in a stainless-steel jacket. The system is installed inside the ITER Vacuum Vessel, and it is fed by high-voltage feedthroughs that provide electrical power and cooling water to the copper conductors. Each coil is cooled individually and has dedicated inlet/outlet stainless-steel pipes in the ex-vessel area. To electrically separate the IVC from the ITER cooling water system, an electrical insulating break is needed. The IVC Insulating Break (IB) is operated in a radiation environment and at temperatures up to 240 °C. It shall provide electrical insulation up to 2.4 kV and shall withstand cooling water pressure up to 44 bar as well as mechanical and thermal loads related to the ITER IVC operations.",

keywords = "Fusion Technology (A), ITER (E), Insulating breaks (B), Magnets (D), Vacuum brazing (C)",

author = "Davide Macioce and Alexander Vostner and Aguinaga, \{Cristina Jimenez\} and Mitxelena, \{Xabier Gomez\} and Gomez, \{Miguel Angel Lagos\} and Salazar, \{Igor Rueda\} and Ruiz, \{Roberto San Mart{\'i}n\} and Santillana, \{Ignacio Aviles\}",

note = "Publisher Copyright: {\textcopyright} 2025 Elsevier B.V.",

year = "2025",

month = jul,

doi = "10.1016/j.fusengdes.2025.115112",

language = "English",

volume = "216",

journal = "Fusion Engineering and Design",

issn = "0920-3796",

publisher = "Elsevier BV",

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T1 - Design and qualification of a ceramic insulating break for ITER In-Vessel Coils

AU - Macioce, Davide

AU - Vostner, Alexander

AU - Aguinaga, Cristina Jimenez

AU - Mitxelena, Xabier Gomez

AU - Gomez, Miguel Angel Lagos

AU - Salazar, Igor Rueda

AU - Ruiz, Roberto San Martín

AU - Santillana, Ignacio Aviles

PY - 2025/7

Y1 - 2025/7

N2 - The ITER In-Vessel Coils (IVC) are water-cooled coils, composed by a mineral-insulated copper conductor, enclosed in a stainless-steel jacket. The system is installed inside the ITER Vacuum Vessel, and it is fed by high-voltage feedthroughs that provide electrical power and cooling water to the copper conductors. Each coil is cooled individually and has dedicated inlet/outlet stainless-steel pipes in the ex-vessel area. To electrically separate the IVC from the ITER cooling water system, an electrical insulating break is needed. The IVC Insulating Break (IB) is operated in a radiation environment and at temperatures up to 240 °C. It shall provide electrical insulation up to 2.4 kV and shall withstand cooling water pressure up to 44 bar as well as mechanical and thermal loads related to the ITER IVC operations.

AB - The ITER In-Vessel Coils (IVC) are water-cooled coils, composed by a mineral-insulated copper conductor, enclosed in a stainless-steel jacket. The system is installed inside the ITER Vacuum Vessel, and it is fed by high-voltage feedthroughs that provide electrical power and cooling water to the copper conductors. Each coil is cooled individually and has dedicated inlet/outlet stainless-steel pipes in the ex-vessel area. To electrically separate the IVC from the ITER cooling water system, an electrical insulating break is needed. The IVC Insulating Break (IB) is operated in a radiation environment and at temperatures up to 240 °C. It shall provide electrical insulation up to 2.4 kV and shall withstand cooling water pressure up to 44 bar as well as mechanical and thermal loads related to the ITER IVC operations.

KW - Fusion Technology (A)

KW - ITER (E)

KW - Insulating breaks (B)

KW - Magnets (D)

KW - Vacuum brazing (C)

UR - https://www.scopus.com/pages/publications/105002925374

U2 - 10.1016/j.fusengdes.2025.115112

DO - 10.1016/j.fusengdes.2025.115112

M3 - Article

AN - SCOPUS:105002925374

SN - 0920-3796

VL - 216

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

M1 - 115112

ER -

Design and qualification of a ceramic insulating break for ITER In-Vessel Coils

Abstract

UN SDGs

Keywords

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