Commissioning activities and first results from the collective Thomson scattering diagnostic on ASDEX Upgrade (invited)

Fernando Meo; Henrik Bindslev; Søren Bang Korsholm; Vedran Furtula; F. Leuterer; Frank Leipold; Poul Michelsen; Stefan Kragh Nielsen; Mirko Salewski; J. Stober; D. Wagner; P. Woskov

doi:10.1063/1.2989140

Commissioning activities and first results from the collective Thomson scattering diagnostic on ASDEX Upgrade (invited)

Fernando Meo
, Henrik Bindslev
, Søren Bang Korsholm
, Vedran Furtula
, F. Leuterer
, Frank Leipold
, Poul Michelsen
, Stefan Kragh Nielsen
, Mirko Salewski
, J. Stober
, D. Wagner
, P. Woskov

Massachusetts Institute of Technology
Max Planck Institute

Research output: Contribution to journal › Conference article › Research › peer-review

727 Downloads (Orbit)

Abstract

The collective Thomson scattering (CTS) diagnostic installed on ASDEX Upgrade uses millimeter waves generated by the newly installed 1 MW dual frequency gyrotron as probing radiation at 105 GHz. It measures backscattered radiation with a heterodyne receiver having 50 channels (between 100 and 110 GHz) to resolve the one-dimensional velocity distribution of the confined fast ions. The steerable antennas will allow different scattering geometries to fully explore the anisotropic fast ion distributions at different spatial locations. This paper covers the capabilities and operational limits of the diagnostic. It then describes the commissioning activities carried out to date. These activities include gyrotron studies, transmission line alignment, and beam pattern measurements in the vacuum vessel. Overlap experiments in near perpendicular and near parallel have confirmed the successful alignment of the system. First results in near perpendicular of scattered spectra in a neutral beam injection (NBI) and ion cyclotron resonance heating (ICRH) plasma (minority hydrogen) on ASDEX Upgrade have shown evidence of ICRH heating phase of hydrogen. ©2008 American Institute of Physics

Original language	English
Journal	Review of Scientific Instruments
Volume	79
Issue number	10
Pages (from-to)	10E501
ISSN	0034-6748
DOIs	https://doi.org/10.1063/1.2989140
Publication status	Published - 2008
Event	17. Topical Conference on High-Temperature Plasma Diagnostics - Albuquerque, NM, United States Duration: 11 May 2008 → 15 May 2008 Conference number: 17

Conference

Conference	17. Topical Conference on High-Temperature Plasma Diagnostics
Number	17
Country/Territory	United States
City	Albuquerque, NM
Period	11/05/2008 → 15/05/2008

Bibliographical note

Copyright (2008) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Access to Document

10.1063/1.2989140

KorsholmFinal published version, 851 KB

OpenUrl availability

Check availability in DTU Findit

Cite this

Meo, F., Bindslev, H., Korsholm, S. B., Furtula, V., Leuterer, F., Leipold, F., Michelsen, P., Nielsen, S. K., Salewski, M., Stober, J., Wagner, D., & Woskov, P. (2008). Commissioning activities and first results from the collective Thomson scattering diagnostic on ASDEX Upgrade (invited). Review of Scientific Instruments, 79(10), 10E501. https://doi.org/10.1063/1.2989140

@inproceedings{21c42925c3834d79a153e31d4ce44934,

title = "Commissioning activities and first results from the collective Thomson scattering diagnostic on ASDEX Upgrade (invited)",

abstract = "The collective Thomson scattering (CTS) diagnostic installed on ASDEX Upgrade uses millimeter waves generated by the newly installed 1 MW dual frequency gyrotron as probing radiation at 105 GHz. It measures backscattered radiation with a heterodyne receiver having 50 channels (between 100 and 110 GHz) to resolve the one-dimensional velocity distribution of the confined fast ions. The steerable antennas will allow different scattering geometries to fully explore the anisotropic fast ion distributions at different spatial locations. This paper covers the capabilities and operational limits of the diagnostic. It then describes the commissioning activities carried out to date. These activities include gyrotron studies, transmission line alignment, and beam pattern measurements in the vacuum vessel. Overlap experiments in near perpendicular and near parallel have confirmed the successful alignment of the system. First results in near perpendicular of scattered spectra in a neutral beam injection (NBI) and ion cyclotron resonance heating (ICRH) plasma (minority hydrogen) on ASDEX Upgrade have shown evidence of ICRH heating phase of hydrogen. {\textcopyright}2008 American Institute of Physics",

keywords = "Energiteknologier p{\aa} vej",

author = "Fernando Meo and Henrik Bindslev and Korsholm, \{S{\o}ren Bang\} and Vedran Furtula and F. Leuterer and Frank Leipold and Poul Michelsen and Nielsen, \{Stefan Kragh\} and Mirko Salewski and J. Stober and D. Wagner and P. Woskov",

note = "Copyright (2008) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.; 17. Topical Conference on High-Temperature Plasma Diagnostics ; Conference date: 11-05-2008 Through 15-05-2008",

year = "2008",

doi = "10.1063/1.2989140",

language = "English",

volume = "79",

pages = "10E501",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

number = "10",

}

Meo, F, Bindslev, H, Korsholm, SB, Furtula, V, Leuterer, F, Leipold, F, Michelsen, P, Nielsen, SK , Salewski, M, Stober, J, Wagner, D & Woskov, P 2008, 'Commissioning activities and first results from the collective Thomson scattering diagnostic on ASDEX Upgrade (invited)', Review of Scientific Instruments, vol. 79, no. 10, pp. 10E501. https://doi.org/10.1063/1.2989140

TY - GEN

T1 - Commissioning activities and first results from the collective Thomson scattering diagnostic on ASDEX Upgrade (invited)

AU - Meo, Fernando

AU - Bindslev, Henrik

AU - Korsholm, Søren Bang

AU - Furtula, Vedran

AU - Leuterer, F.

AU - Leipold, Frank

AU - Michelsen, Poul

AU - Nielsen, Stefan Kragh

AU - Salewski, Mirko

AU - Stober, J.

AU - Wagner, D.

AU - Woskov, P.

N1 - Conference code: 17

PY - 2008

Y1 - 2008

N2 - The collective Thomson scattering (CTS) diagnostic installed on ASDEX Upgrade uses millimeter waves generated by the newly installed 1 MW dual frequency gyrotron as probing radiation at 105 GHz. It measures backscattered radiation with a heterodyne receiver having 50 channels (between 100 and 110 GHz) to resolve the one-dimensional velocity distribution of the confined fast ions. The steerable antennas will allow different scattering geometries to fully explore the anisotropic fast ion distributions at different spatial locations. This paper covers the capabilities and operational limits of the diagnostic. It then describes the commissioning activities carried out to date. These activities include gyrotron studies, transmission line alignment, and beam pattern measurements in the vacuum vessel. Overlap experiments in near perpendicular and near parallel have confirmed the successful alignment of the system. First results in near perpendicular of scattered spectra in a neutral beam injection (NBI) and ion cyclotron resonance heating (ICRH) plasma (minority hydrogen) on ASDEX Upgrade have shown evidence of ICRH heating phase of hydrogen. ©2008 American Institute of Physics

AB - The collective Thomson scattering (CTS) diagnostic installed on ASDEX Upgrade uses millimeter waves generated by the newly installed 1 MW dual frequency gyrotron as probing radiation at 105 GHz. It measures backscattered radiation with a heterodyne receiver having 50 channels (between 100 and 110 GHz) to resolve the one-dimensional velocity distribution of the confined fast ions. The steerable antennas will allow different scattering geometries to fully explore the anisotropic fast ion distributions at different spatial locations. This paper covers the capabilities and operational limits of the diagnostic. It then describes the commissioning activities carried out to date. These activities include gyrotron studies, transmission line alignment, and beam pattern measurements in the vacuum vessel. Overlap experiments in near perpendicular and near parallel have confirmed the successful alignment of the system. First results in near perpendicular of scattered spectra in a neutral beam injection (NBI) and ion cyclotron resonance heating (ICRH) plasma (minority hydrogen) on ASDEX Upgrade have shown evidence of ICRH heating phase of hydrogen. ©2008 American Institute of Physics

KW - Energiteknologier på vej

U2 - 10.1063/1.2989140

DO - 10.1063/1.2989140

M3 - Conference article

C2 - 19044487

SN - 0034-6748

VL - 79

SP - 10E501

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 10

T2 - 17. Topical Conference on High-Temperature Plasma Diagnostics

Y2 - 11 May 2008 through 15 May 2008

ER -

Commissioning activities and first results from the collective Thomson scattering diagnostic on ASDEX Upgrade (invited)

Abstract

Conference

Bibliographical note

Access to Document

OpenUrl availability

Fingerprint

Cite this