Collective Thomson scattering data analysis for Wendelstein 7-X

I. Abramovic; A. Pavone; J. Svensson; D. Moseev; M. Salewski; H. P. Laqua; N.J.  Lopes Cardozo; R.C. Wolf

doi:10.1088/1748-0221/12/08/C08015

Collective Thomson scattering data analysis for Wendelstein 7-X

I. Abramovic
, A. Pavone
, J. Svensson
, D. Moseev
, M. Salewski
, H. P. Laqua
, N.J. Lopes Cardozo
, R.C. Wolf

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

13 Citations (Scopus)

69 Downloads (Pure)

Abstract

Collective Thomson scattering (CTS) diagnostic is being installed on the Wendelstein 7-X stellarator to measure the bulk ion temperature in the upcoming experimental campaign. In order to prepare for the data analysis, a forward model of the diagnostic (eCTS) has been developed and integrated into the Bayesian data analysis framework Minerva. Synthetic spectra have been calculated with the forward model and inverted using Minerva in order to demonstrate the feasibility to measure the ion temperature in the presence of nuisance parameters that also influence CTS spectra. In this paper we report on the results of this analysis and discuss the main sources of uncertainty in the CTS data analysis.

Original language	English
Article number	C08015
Number of pages	7
Journal	Journal of Instrumentation
Volume	12
Issue number	8
DOIs	https://doi.org/10.1088/1748-0221/12/08/C08015
Publication status	Published - 16 Aug 2017
Event	2nd European Conference on Plasma Diagnostics (ECPD 2017) - Bordeaux, France Duration: 18 Apr 2017 → 21 Apr 2017 Conference number: 2 http://iopscience.iop.org/journal/1748-0221/page/extraproc65

Keywords

Analysis and statistical methods
Nuclear instruments and methods for hot plasma diagnostics
Simulation methods and programs

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10.1088/1748-0221/12/08/C08015

publisher versionFinal published version, 1.92 MBLicence: TAVERNE

Cite this

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title = "Collective Thomson scattering data analysis for Wendelstein 7-X",

abstract = "Collective Thomson scattering (CTS) diagnostic is being installed on the Wendelstein 7-X stellarator to measure the bulk ion temperature in the upcoming experimental campaign. In order to prepare for the data analysis, a forward model of the diagnostic (eCTS) has been developed and integrated into the Bayesian data analysis framework Minerva. Synthetic spectra have been calculated with the forward model and inverted using Minerva in order to demonstrate the feasibility to measure the ion temperature in the presence of nuisance parameters that also influence CTS spectra. In this paper we report on the results of this analysis and discuss the main sources of uncertainty in the CTS data analysis.",

keywords = "Analysis and statistical methods, Nuclear instruments and methods for hot plasma diagnostics, Simulation methods and programs",

author = "I. Abramovic and A. Pavone and J. Svensson and D. Moseev and M. Salewski and Laqua, \{H. P.\} and \{Lopes Cardozo\}, N.J. and R.C. Wolf",

year = "2017",

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doi = "10.1088/1748-0221/12/08/C08015",

language = "English",

volume = "12",

journal = "Journal of Instrumentation",

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note = "2nd European Conference on Plasma Diagnostics (ECPD 2017), ECPD 2017 ; Conference date: 18-04-2017 Through 21-04-2017",

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T1 - Collective Thomson scattering data analysis for Wendelstein 7-X

AU - Abramovic, I.

AU - Pavone, A.

AU - Svensson, J.

AU - Moseev, D.

AU - Salewski, M.

AU - Laqua, H. P.

AU - Lopes Cardozo, N.J.

AU - Wolf, R.C.

N1 - Conference code: 2

PY - 2017/8/16

Y1 - 2017/8/16

N2 - Collective Thomson scattering (CTS) diagnostic is being installed on the Wendelstein 7-X stellarator to measure the bulk ion temperature in the upcoming experimental campaign. In order to prepare for the data analysis, a forward model of the diagnostic (eCTS) has been developed and integrated into the Bayesian data analysis framework Minerva. Synthetic spectra have been calculated with the forward model and inverted using Minerva in order to demonstrate the feasibility to measure the ion temperature in the presence of nuisance parameters that also influence CTS spectra. In this paper we report on the results of this analysis and discuss the main sources of uncertainty in the CTS data analysis.

AB - Collective Thomson scattering (CTS) diagnostic is being installed on the Wendelstein 7-X stellarator to measure the bulk ion temperature in the upcoming experimental campaign. In order to prepare for the data analysis, a forward model of the diagnostic (eCTS) has been developed and integrated into the Bayesian data analysis framework Minerva. Synthetic spectra have been calculated with the forward model and inverted using Minerva in order to demonstrate the feasibility to measure the ion temperature in the presence of nuisance parameters that also influence CTS spectra. In this paper we report on the results of this analysis and discuss the main sources of uncertainty in the CTS data analysis.

KW - Analysis and statistical methods

KW - Nuclear instruments and methods for hot plasma diagnostics

KW - Simulation methods and programs

UR - https://www.scopus.com/pages/publications/85031015958

U2 - 10.1088/1748-0221/12/08/C08015

DO - 10.1088/1748-0221/12/08/C08015

M3 - Article

AN - SCOPUS:85031015958

SN - 1748-0221

VL - 12

JO - Journal of Instrumentation

JF - Journal of Instrumentation

IS - 8

M1 - C08015

T2 - 2nd European Conference on Plasma Diagnostics (ECPD 2017)

Y2 - 18 April 2017 through 21 April 2017

ER -

Collective Thomson scattering data analysis for Wendelstein 7-X

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Keywords

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