Development of a real-time algorithm for detection of the divertor detachment radiation front using multi-spectral imaging

EUROfusion MST1 Team; TCV team; T. Ravensbergen; M. van Berkel; S.A. Silburn; J.R. Harrison; A. Perek; K. Verhaegh; W.A.J. Vijvers; C. Theiler; A. Kirk; M.R. de Baar

doi:10.1088/1741-4326/ab8183

Development of a real-time algorithm for detection of the divertor detachment radiation front using multi-spectral imaging

EUROfusion MST1 Team
, TCV team
, T. Ravensbergen
, M. van Berkel
, S.A. Silburn
, J.R. Harrison
, A. Perek
, K. Verhaegh
, W.A.J. Vijvers
, C. Theiler
, A. Kirk
, M.R. de Baar

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

30 Citations (Scopus)

Abstract

In this paper we present a novel algorithm to extract the optical plasma boundary and radiation front for detached divertor plasmas. We show that reliable detection of the divertor leg and radiation front is possible using lightweight image processing tools. Using a non-tomographic approach, the detected divertor leg and radiation front can be mapped to the poloidal plane. This approach is fast and accurate enough for real-time control purposes, allowing in particular real-time plasma shape and detachment control, and post-shot detachment physics and dynamics analysis.

Original language	English
Article number	066017
Journal	Nuclear Fusion
Volume	60
Issue number	6
DOIs	https://doi.org/10.1088/1741-4326/ab8183
Publication status	Published - Jun 2020

Funding

Funders	Funder number
European Union's Horizon 2020 - Research and Innovation Framework Programme	633053

Keywords

divertor detachment
multispectral imaging
real-time analysis
tokamak

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10.1088/1741-4326/ab8183

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EUROfusion MST1 Team, TCV team, Ravensbergen, T., van Berkel, M., Silburn, S. A., Harrison, J. R., Perek, A., Verhaegh, K., Vijvers, W. A. J., Theiler, C., Kirk, A., & de Baar, M. R. (2020). Development of a real-time algorithm for detection of the divertor detachment radiation front using multi-spectral imaging. Nuclear Fusion, 60(6), Article 066017. https://doi.org/10.1088/1741-4326/ab8183

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title = "Development of a real-time algorithm for detection of the divertor detachment radiation front using multi-spectral imaging",

abstract = "In this paper we present a novel algorithm to extract the optical plasma boundary and radiation front for detached divertor plasmas. We show that reliable detection of the divertor leg and radiation front is possible using lightweight image processing tools. Using a non-tomographic approach, the detected divertor leg and radiation front can be mapped to the poloidal plane. This approach is fast and accurate enough for real-time control purposes, allowing in particular real-time plasma shape and detachment control, and post-shot detachment physics and dynamics analysis.",

keywords = "divertor detachment, multispectral imaging, real-time analysis, tokamak",

author = "\{EUROfusion MST1 Team\} and \{TCV team\} and T. Ravensbergen and \{van Berkel\}, M. and S.A. Silburn and J.R. Harrison and A. Perek and K. Verhaegh and W.A.J. Vijvers and C. Theiler and A. Kirk and \{de Baar\}, M.R.",

year = "2020",

month = jun,

doi = "10.1088/1741-4326/ab8183",

language = "English",

volume = "60",

journal = "Nuclear Fusion",

issn = "0029-5515",

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EUROfusion MST1 Team, TCV team, Ravensbergen, T, van Berkel, M, Silburn, SA, Harrison, JR, Perek, A, Verhaegh, K, Vijvers, WAJ, Theiler, C, Kirk, A & de Baar, MR 2020, 'Development of a real-time algorithm for detection of the divertor detachment radiation front using multi-spectral imaging', Nuclear Fusion, vol. 60, no. 6, 066017. https://doi.org/10.1088/1741-4326/ab8183

TY - JOUR

T1 - Development of a real-time algorithm for detection of the divertor detachment radiation front using multi-spectral imaging

AU - EUROfusion MST1 Team

AU - TCV team

AU - Ravensbergen, T.

AU - van Berkel, M.

AU - Silburn, S.A.

AU - Harrison, J.R.

AU - Perek, A.

AU - Verhaegh, K.

AU - Vijvers, W.A.J.

AU - Theiler, C.

AU - Kirk, A.

AU - de Baar, M.R.

PY - 2020/6

Y1 - 2020/6

N2 - In this paper we present a novel algorithm to extract the optical plasma boundary and radiation front for detached divertor plasmas. We show that reliable detection of the divertor leg and radiation front is possible using lightweight image processing tools. Using a non-tomographic approach, the detected divertor leg and radiation front can be mapped to the poloidal plane. This approach is fast and accurate enough for real-time control purposes, allowing in particular real-time plasma shape and detachment control, and post-shot detachment physics and dynamics analysis.

AB - In this paper we present a novel algorithm to extract the optical plasma boundary and radiation front for detached divertor plasmas. We show that reliable detection of the divertor leg and radiation front is possible using lightweight image processing tools. Using a non-tomographic approach, the detected divertor leg and radiation front can be mapped to the poloidal plane. This approach is fast and accurate enough for real-time control purposes, allowing in particular real-time plasma shape and detachment control, and post-shot detachment physics and dynamics analysis.

KW - divertor detachment

KW - multispectral imaging

KW - real-time analysis

KW - tokamak

UR - https://www.scopus.com/pages/publications/85082398029

U2 - 10.1088/1741-4326/ab8183

DO - 10.1088/1741-4326/ab8183

M3 - Article

AN - SCOPUS:85082398029

SN - 0029-5515

VL - 60

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 6

M1 - 066017

ER -

Development of a real-time algorithm for detection of the divertor detachment radiation front using multi-spectral imaging

Abstract

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Keywords

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Advanced methods in control of the core density and divertor detachment in nuclear fusion devices

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