Fast ion collective Thomson scattering diagnostic for ITER: Design elements

Erekle Tsakadze, Henrik Bindslev, Søren Bang Korsholm, A.W. Larsen, Fernando Meo, Poul Michelsen, Susanne Michelsen, Anders Henry Nielsen, Søren Robert Nimb, Bent Lauritzen, Erik Nonbøl, Nicolas Dubois

Publikation: Bidrag til tidsskriftKonferenceartikelForskningpeer review

Resumé

The proposed fast ion collective Thomson scattering (CTS) diagnostic system for ITER provides the unique capability of measuring the temporally and spatially resolved velocity distribution of the confined fast ions and fusion alpha particles in a burning ITER plasma. The present paper describes the status of the iteration toward the detailed design of the ITER fast ion CTS diagnostic and explains in detail a number of essential considerations and challenges. The diagnostic consists of two separate receiving systems. One system measures the fast ion velocity component in the direction near perpendicular, and the other measures the component near parallel to the magnetic field. Each system has a high-power probe beam at an operating frequency of 60 GHz and a receiver unit. In order to prevent neutron damage to moveable parts, the geometry of the probes and receivers is fixed An array of receivers in each receiving unit ensures simultaneous measurements in multiple scattering volumes. The latter receiving system (resolving the parallel component) is located on the high field side (HFS) of the plasma, and this constitutes a significant challenge. This HFS receiving unit has been central in the studies, and new HFS receiver mock-up measurements are presented as well as neutron flux calculations of the influence of the increased slot height.
OriginalsprogEngelsk
TidsskriftFusion Science and Technology
Vol/bind53
Udgave nummer1
Sider (fra-til)69-76
ISSN1536-1055
StatusUdgivet - 2008
Udgivet eksterntJa
Begivenhed14th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating - Santorini Island, Grækenland
Varighed: 9. maj 200612. maj 2006

Konference

Konference14th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating
LandGrækenland
BySantorini Island
Periode09/05/200612/05/2006

Fingeraftryk

Thomson scattering
ion scattering
receivers
Scattering
Ions
Plasmas
Alpha particles
Neutron flux
Multiple scattering
Velocity distribution
Neutrons
Fusion reactions
probes
Magnetic fields
flux (rate)
slots
alpha particles
iteration
Geometry
ions

Citer dette

Tsakadze, E., Bindslev, H., Korsholm, S. B., Larsen, A. W., Meo, F., Michelsen, P., ... Dubois, N. (2008). Fast ion collective Thomson scattering diagnostic for ITER: Design elements. Fusion Science and Technology, 53(1), 69-76.
Tsakadze, Erekle ; Bindslev, Henrik ; Korsholm, Søren Bang ; Larsen, A.W. ; Meo, Fernando ; Michelsen, Poul ; Michelsen, Susanne ; Nielsen, Anders Henry ; Nimb, Søren Robert ; Lauritzen, Bent ; Nonbøl, Erik ; Dubois, Nicolas. / Fast ion collective Thomson scattering diagnostic for ITER: Design elements. I: Fusion Science and Technology. 2008 ; Bind 53, Nr. 1. s. 69-76.
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title = "Fast ion collective Thomson scattering diagnostic for ITER: Design elements",
abstract = "The proposed fast ion collective Thomson scattering (CTS) diagnostic system for ITER provides the unique capability of measuring the temporally and spatially resolved velocity distribution of the confined fast ions and fusion alpha particles in a burning ITER plasma. The present paper describes the status of the iteration toward the detailed design of the ITER fast ion CTS diagnostic and explains in detail a number of essential considerations and challenges. The diagnostic consists of two separate receiving systems. One system measures the fast ion velocity component in the direction near perpendicular, and the other measures the component near parallel to the magnetic field. Each system has a high-power probe beam at an operating frequency of 60 GHz and a receiver unit. In order to prevent neutron damage to moveable parts, the geometry of the probes and receivers is fixed An array of receivers in each receiving unit ensures simultaneous measurements in multiple scattering volumes. The latter receiving system (resolving the parallel component) is located on the high field side (HFS) of the plasma, and this constitutes a significant challenge. This HFS receiving unit has been central in the studies, and new HFS receiver mock-up measurements are presented as well as neutron flux calculations of the influence of the increased slot height.",
author = "Erekle Tsakadze and Henrik Bindslev and Korsholm, {S{\o}ren Bang} and A.W. Larsen and Fernando Meo and Poul Michelsen and Susanne Michelsen and Nielsen, {Anders Henry} and Nimb, {S{\o}ren Robert} and Bent Lauritzen and Erik Nonb{\o}l and Nicolas Dubois",
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journal = "Fusion Science and Technology",
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Tsakadze, E, Bindslev, H, Korsholm, SB, Larsen, AW, Meo, F, Michelsen, P, Michelsen, S, Nielsen, AH, Nimb, SR, Lauritzen, B, Nonbøl, E & Dubois, N 2008, 'Fast ion collective Thomson scattering diagnostic for ITER: Design elements', Fusion Science and Technology, bind 53, nr. 1, s. 69-76.

Fast ion collective Thomson scattering diagnostic for ITER: Design elements. / Tsakadze, Erekle; Bindslev, Henrik; Korsholm, Søren Bang; Larsen, A.W.; Meo, Fernando; Michelsen, Poul; Michelsen, Susanne; Nielsen, Anders Henry; Nimb, Søren Robert; Lauritzen, Bent; Nonbøl, Erik; Dubois, Nicolas.

I: Fusion Science and Technology, Bind 53, Nr. 1, 2008, s. 69-76.

Publikation: Bidrag til tidsskriftKonferenceartikelForskningpeer review

TY - GEN

T1 - Fast ion collective Thomson scattering diagnostic for ITER: Design elements

AU - Tsakadze, Erekle

AU - Bindslev, Henrik

AU - Korsholm, Søren Bang

AU - Larsen, A.W.

AU - Meo, Fernando

AU - Michelsen, Poul

AU - Michelsen, Susanne

AU - Nielsen, Anders Henry

AU - Nimb, Søren Robert

AU - Lauritzen, Bent

AU - Nonbøl, Erik

AU - Dubois, Nicolas

PY - 2008

Y1 - 2008

N2 - The proposed fast ion collective Thomson scattering (CTS) diagnostic system for ITER provides the unique capability of measuring the temporally and spatially resolved velocity distribution of the confined fast ions and fusion alpha particles in a burning ITER plasma. The present paper describes the status of the iteration toward the detailed design of the ITER fast ion CTS diagnostic and explains in detail a number of essential considerations and challenges. The diagnostic consists of two separate receiving systems. One system measures the fast ion velocity component in the direction near perpendicular, and the other measures the component near parallel to the magnetic field. Each system has a high-power probe beam at an operating frequency of 60 GHz and a receiver unit. In order to prevent neutron damage to moveable parts, the geometry of the probes and receivers is fixed An array of receivers in each receiving unit ensures simultaneous measurements in multiple scattering volumes. The latter receiving system (resolving the parallel component) is located on the high field side (HFS) of the plasma, and this constitutes a significant challenge. This HFS receiving unit has been central in the studies, and new HFS receiver mock-up measurements are presented as well as neutron flux calculations of the influence of the increased slot height.

AB - The proposed fast ion collective Thomson scattering (CTS) diagnostic system for ITER provides the unique capability of measuring the temporally and spatially resolved velocity distribution of the confined fast ions and fusion alpha particles in a burning ITER plasma. The present paper describes the status of the iteration toward the detailed design of the ITER fast ion CTS diagnostic and explains in detail a number of essential considerations and challenges. The diagnostic consists of two separate receiving systems. One system measures the fast ion velocity component in the direction near perpendicular, and the other measures the component near parallel to the magnetic field. Each system has a high-power probe beam at an operating frequency of 60 GHz and a receiver unit. In order to prevent neutron damage to moveable parts, the geometry of the probes and receivers is fixed An array of receivers in each receiving unit ensures simultaneous measurements in multiple scattering volumes. The latter receiving system (resolving the parallel component) is located on the high field side (HFS) of the plasma, and this constitutes a significant challenge. This HFS receiving unit has been central in the studies, and new HFS receiver mock-up measurements are presented as well as neutron flux calculations of the influence of the increased slot height.

M3 - Conference article

VL - 53

SP - 69

EP - 76

JO - Fusion Science and Technology

JF - Fusion Science and Technology

SN - 1536-1055

IS - 1

ER -

Tsakadze E, Bindslev H, Korsholm SB, Larsen AW, Meo F, Michelsen P et al. Fast ion collective Thomson scattering diagnostic for ITER: Design elements. Fusion Science and Technology. 2008;53(1):69-76.