Stray radiation energy fluxes in ITER based on a multiresonator model

D. Moseev; J. W. Oosterbeek; A. Sirinelli; Y. Corre; M. Houry; S. B. Korsholm; H. P. Laqua; S. Marsen; M. Preynas; J. Rasmussen; M. Salewski; T. Stange; V. Udintsev

doi:10.1016/j.fusengdes.2021.112754

Stray radiation energy fluxes in ITER based on a multiresonator model

D. Moseev^*, J. W. Oosterbeek, A. Sirinelli, Y. Corre, M. Houry, S. B. Korsholm, H. P. Laqua, S. Marsen, M. Preynas, J. Rasmussen, M. Salewski, T. Stange, V. Udintsev

^*Corresponding author for this work

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Abstract

Here we re-evaluate the stray radiation loads due to electron cyclotron resonance heating and diagnostic gyrotrons in ITER, as well as compute the stray radiation energy flux due to electron cyclotron emission. Microwave loads due to stray radiation were assessed in the past. We give here more comprehensive estimates, including spatial variations in the machine. We show that for the start-up phase in the First Plasma campaign the threshold of 100 kW/m², which diagnostics have to be able to withstand, is not exceeded. For the later campaigns, the stray radiation energy flux during start-up and burnthrough will exceed 450 kW/m². Stray radiation from electron cyclotron emission and from a diagnostic 60 GHz gyrotron can contribute to more than 140 kW/m² combined.

Original language	English
Article number	112754
Journal	Fusion Engineering and Design
Volume	172
Number of pages	7
ISSN	0920-3796
DOIs	https://doi.org/10.1016/j.fusengdes.2021.112754
Publication status	Published - 2021

Bibliographical note

Funding Information:
This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

Funding Information:
The work leading to this publication has been funded partially by Fusion for Energy under the Framework Partnership Agreement F4E-FPA-393. This publication reflects the views only of the author, and Fusion for Energy cannot be held responsible for any use which may be made of the information contained therein.

Keywords

CTS
ECE
ECRH
Gyrotron
ITER
Stray radiation

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title = "Stray radiation energy fluxes in ITER based on a multiresonator model",

abstract = "Here we re-evaluate the stray radiation loads due to electron cyclotron resonance heating and diagnostic gyrotrons in ITER, as well as compute the stray radiation energy flux due to electron cyclotron emission. Microwave loads due to stray radiation were assessed in the past. We give here more comprehensive estimates, including spatial variations in the machine. We show that for the start-up phase in the First Plasma campaign the threshold of 100 kW/m2, which diagnostics have to be able to withstand, is not exceeded. For the later campaigns, the stray radiation energy flux during start-up and burnthrough will exceed 450 kW/m2. Stray radiation from electron cyclotron emission and from a diagnostic 60 GHz gyrotron can contribute to more than 140 kW/m2 combined.",

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author = "D. Moseev and Oosterbeek, {J. W.} and A. Sirinelli and Y. Corre and M. Houry and Korsholm, {S. B.} and Laqua, {H. P.} and S. Marsen and M. Preynas and J. Rasmussen and M. Salewski and T. Stange and V. Udintsev",

note = "Funding Information: This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. Funding Information: The work leading to this publication has been funded partially by Fusion for Energy under the Framework Partnership Agreement F4E-FPA-393. This publication reflects the views only of the author, and Fusion for Energy cannot be held responsible for any use which may be made of the information contained therein. ",

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language = "English",

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T1 - Stray radiation energy fluxes in ITER based on a multiresonator model

AU - Moseev, D.

AU - Oosterbeek, J. W.

AU - Sirinelli, A.

AU - Corre, Y.

AU - Houry, M.

AU - Korsholm, S. B.

AU - Laqua, H. P.

AU - Marsen, S.

AU - Preynas, M.

AU - Rasmussen, J.

AU - Salewski, M.

AU - Stange, T.

AU - Udintsev, V.

N1 - Funding Information: This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. Funding Information: The work leading to this publication has been funded partially by Fusion for Energy under the Framework Partnership Agreement F4E-FPA-393. This publication reflects the views only of the author, and Fusion for Energy cannot be held responsible for any use which may be made of the information contained therein.

PY - 2021

Y1 - 2021

N2 - Here we re-evaluate the stray radiation loads due to electron cyclotron resonance heating and diagnostic gyrotrons in ITER, as well as compute the stray radiation energy flux due to electron cyclotron emission. Microwave loads due to stray radiation were assessed in the past. We give here more comprehensive estimates, including spatial variations in the machine. We show that for the start-up phase in the First Plasma campaign the threshold of 100 kW/m2, which diagnostics have to be able to withstand, is not exceeded. For the later campaigns, the stray radiation energy flux during start-up and burnthrough will exceed 450 kW/m2. Stray radiation from electron cyclotron emission and from a diagnostic 60 GHz gyrotron can contribute to more than 140 kW/m2 combined.

AB - Here we re-evaluate the stray radiation loads due to electron cyclotron resonance heating and diagnostic gyrotrons in ITER, as well as compute the stray radiation energy flux due to electron cyclotron emission. Microwave loads due to stray radiation were assessed in the past. We give here more comprehensive estimates, including spatial variations in the machine. We show that for the start-up phase in the First Plasma campaign the threshold of 100 kW/m2, which diagnostics have to be able to withstand, is not exceeded. For the later campaigns, the stray radiation energy flux during start-up and burnthrough will exceed 450 kW/m2. Stray radiation from electron cyclotron emission and from a diagnostic 60 GHz gyrotron can contribute to more than 140 kW/m2 combined.

KW - CTS

KW - ECE

KW - ECRH

KW - Gyrotron

KW - ITER

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DO - 10.1016/j.fusengdes.2021.112754

M3 - Journal article

AN - SCOPUS:85111917784

SN - 0920-3796

VL - 172

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

M1 - 112754

ER -

Stray radiation energy fluxes in ITER based on a multiresonator model

Abstract

Bibliographical note

Keywords

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