Microwave imaging of magnetohydrodynamic instabilities in fusion plasma

Roland Sabot; Didier Elbèze; Woochang Lee; Yoonbum Nam; Hyeon Park; Junsong Shen; Gunsu Yun; Minjun Choi; Jean Claude Giacalone; Timothée Nicolas; Christine Bottereau; Frédéric Clairet; Philippe Lotte; Diego Molina

doi:10.1016/j.crhy.2016.07.021

Microwave imaging of magnetohydrodynamic instabilities in fusion plasma

Roland Sabot
, Didier Elbèze
, Woochang Lee
, Yoonbum Nam
, Hyeon Park
, Junsong Shen
, Gunsu Yun
, Minjun Choi
, Jean Claude Giacalone
, Timothée Nicolas
, Christine Bottereau
, Frédéric Clairet
, Philippe Lotte
, Diego Molina

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

Abstract

Microwave imaging diagnostics are extremely useful for observing magnetohydrodynamic (MHD) instabilities in magnetic fusion plasmas. Two imaging diagnostics will be available on the WEST tokamak. A method was developed to reconstruct electron density maps from electron density profiles measured by ultrafast reflectometry, a technique based on FM-CW radar principle. It relies on plasma rotation to perform 2D reconstruction. An Electron Cyclotron Emission Imaging (ECEI) diagnostic will image directly the temperature fluctuations. It will be equivalent to 24 stacked vertically radiometers, each probing a spot of few centimetres. These two complementary techniques will contribute to the validation of MHD models.

Translated title of the contribution	Imagerie micro-ondes dans les plasmas de fusion magnétique pour visualiser les instabilités magnéto-hydrodynamiques
Original language	English
Pages (from-to)	1018-1026
Number of pages	9
Journal	Comptes Rendus Physique
Volume	17
Issue number	9
DOIs	https://doi.org/10.1016/j.crhy.2016.07.021
Publication status	Published - 1 Nov 2016
Externally published	Yes

Keywords

Fusion plasma diagnostic
MHD
Radiometry
Reflectometry

Access to Document

10.1016/j.crhy.2016.07.021

Cite this

@article{73b376abf04a415a94a6f5d2fc76a2e4,

title = "Microwave imaging of magnetohydrodynamic instabilities in fusion plasma",

abstract = "Microwave imaging diagnostics are extremely useful for observing magnetohydrodynamic (MHD) instabilities in magnetic fusion plasmas. Two imaging diagnostics will be available on the WEST tokamak. A method was developed to reconstruct electron density maps from electron density profiles measured by ultrafast reflectometry, a technique based on FM-CW radar principle. It relies on plasma rotation to perform 2D reconstruction. An Electron Cyclotron Emission Imaging (ECEI) diagnostic will image directly the temperature fluctuations. It will be equivalent to 24 stacked vertically radiometers, each probing a spot of few centimetres. These two complementary techniques will contribute to the validation of MHD models.",

keywords = "Fusion plasma diagnostic, MHD, Radiometry, Reflectometry",

author = "Roland Sabot and Didier Elb{\`e}ze and Woochang Lee and Yoonbum Nam and Hyeon Park and Junsong Shen and Gunsu Yun and Minjun Choi and Giacalone, \{Jean Claude\} and Timoth{\'e}e Nicolas and Christine Bottereau and Fr{\'e}d{\'e}ric Clairet and Philippe Lotte and Diego Molina",

note = "Publisher Copyright: {\textcopyright} 2016 Acad{\'e}mie des sciences",

year = "2016",

month = nov,

day = "1",

doi = "10.1016/j.crhy.2016.07.021",

language = "English",

volume = "17",

pages = "1018--1026",

journal = "Comptes Rendus Physique",

issn = "1631-0705",

number = "9",

}

TY - JOUR

T1 - Microwave imaging of magnetohydrodynamic instabilities in fusion plasma

AU - Sabot, Roland

AU - Elbèze, Didier

AU - Lee, Woochang

AU - Nam, Yoonbum

AU - Park, Hyeon

AU - Shen, Junsong

AU - Yun, Gunsu

AU - Choi, Minjun

AU - Giacalone, Jean Claude

AU - Nicolas, Timothée

AU - Bottereau, Christine

AU - Clairet, Frédéric

AU - Lotte, Philippe

AU - Molina, Diego

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Microwave imaging diagnostics are extremely useful for observing magnetohydrodynamic (MHD) instabilities in magnetic fusion plasmas. Two imaging diagnostics will be available on the WEST tokamak. A method was developed to reconstruct electron density maps from electron density profiles measured by ultrafast reflectometry, a technique based on FM-CW radar principle. It relies on plasma rotation to perform 2D reconstruction. An Electron Cyclotron Emission Imaging (ECEI) diagnostic will image directly the temperature fluctuations. It will be equivalent to 24 stacked vertically radiometers, each probing a spot of few centimetres. These two complementary techniques will contribute to the validation of MHD models.

AB - Microwave imaging diagnostics are extremely useful for observing magnetohydrodynamic (MHD) instabilities in magnetic fusion plasmas. Two imaging diagnostics will be available on the WEST tokamak. A method was developed to reconstruct electron density maps from electron density profiles measured by ultrafast reflectometry, a technique based on FM-CW radar principle. It relies on plasma rotation to perform 2D reconstruction. An Electron Cyclotron Emission Imaging (ECEI) diagnostic will image directly the temperature fluctuations. It will be equivalent to 24 stacked vertically radiometers, each probing a spot of few centimetres. These two complementary techniques will contribute to the validation of MHD models.

KW - Fusion plasma diagnostic

KW - MHD

KW - Radiometry

KW - Reflectometry

U2 - 10.1016/j.crhy.2016.07.021

DO - 10.1016/j.crhy.2016.07.021

M3 - Article

AN - SCOPUS:84991729101

SN - 1631-0705

VL - 17

SP - 1018

EP - 1026

JO - Comptes Rendus Physique

JF - Comptes Rendus Physique

IS - 9

ER -

Microwave imaging of magnetohydrodynamic instabilities in fusion plasma

Abstract

Keywords

Access to Document

Fingerprint

Cite this