Visible core spectroscopy at Wendelstein 7-X

W7-X Team

doi:10.1063/5.0219469

Visible core spectroscopy at Wendelstein 7-X

W7-X Team

PPPL Advanced Projects

Princeton University

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

Abstract

This paper presents an overview of recent hardware extensions and data analysis developments to the Wendelstein 7-X visible core spectroscopy systems. These include upgrades to prepare the in-vessel components for long-pulse operation, nine additional spectrometers, a new line of sight array for passive spectroscopy, and a coherence imaging charge exchange spectroscopy diagnostic. Progress in data analysis includes ion temperatures and densities from multiple impurity species, a statistical comparison with x-ray crystal spectrometer measurements, neutral density measurements from thermal passive Balmer-alpha emission, and a Bayesian analysis of active hydrogen emission, which is able to infer electron density and main ion temperature profiles.

Original language	English (US)
Article number	083526
Journal	Review of Scientific Instruments
Volume	95
Issue number	8
DOIs	https://doi.org/10.1063/5.0219469
State	Published - Aug 1 2024

ASJC Scopus subject areas

Instrumentation

Access to Document

10.1063/5.0219469

Cite this

@article{626cef5e959e4ed7ac55bfe6a4821234,

title = "Visible core spectroscopy at Wendelstein 7-X",

abstract = "This paper presents an overview of recent hardware extensions and data analysis developments to the Wendelstein 7-X visible core spectroscopy systems. These include upgrades to prepare the in-vessel components for long-pulse operation, nine additional spectrometers, a new line of sight array for passive spectroscopy, and a coherence imaging charge exchange spectroscopy diagnostic. Progress in data analysis includes ion temperatures and densities from multiple impurity species, a statistical comparison with x-ray crystal spectrometer measurements, neutral density measurements from thermal passive Balmer-alpha emission, and a Bayesian analysis of active hydrogen emission, which is able to infer electron density and main ion temperature profiles.",

author = "\{W7-X Team\} and Ford, \{O. P.\} and A. Langenberg and T. Romba and P. P{\"o}l{\"o}skei and M. Zanini and S. Bannmann and T. Gonda and K. Ida and \{Lopez Cansino\}, R. and N. Pablant and \{de la Riva Villen\}, J. and C. Swee and M. Yoshinuma and A. Alonso and B. Geiger and V. Perseo and E. Viezzer",

note = "Publisher Copyright: {\textcopyright} 2024 Author(s).",

year = "2024",

month = aug,

day = "1",

doi = "10.1063/5.0219469",

language = "English (US)",

volume = "95",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

number = "8",

}

TY - JOUR

T1 - Visible core spectroscopy at Wendelstein 7-X

AU - W7-X Team

AU - Ford, O. P.

AU - Langenberg, A.

AU - Romba, T.

AU - Pölöskei, P.

AU - Zanini, M.

AU - Bannmann, S.

AU - Gonda, T.

AU - Ida, K.

AU - Lopez Cansino, R.

AU - Pablant, N.

AU - de la Riva Villen, J.

AU - Swee, C.

AU - Yoshinuma, M.

AU - Alonso, A.

AU - Geiger, B.

AU - Perseo, V.

AU - Viezzer, E.

PY - 2024/8/1

Y1 - 2024/8/1

N2 - This paper presents an overview of recent hardware extensions and data analysis developments to the Wendelstein 7-X visible core spectroscopy systems. These include upgrades to prepare the in-vessel components for long-pulse operation, nine additional spectrometers, a new line of sight array for passive spectroscopy, and a coherence imaging charge exchange spectroscopy diagnostic. Progress in data analysis includes ion temperatures and densities from multiple impurity species, a statistical comparison with x-ray crystal spectrometer measurements, neutral density measurements from thermal passive Balmer-alpha emission, and a Bayesian analysis of active hydrogen emission, which is able to infer electron density and main ion temperature profiles.

AB - This paper presents an overview of recent hardware extensions and data analysis developments to the Wendelstein 7-X visible core spectroscopy systems. These include upgrades to prepare the in-vessel components for long-pulse operation, nine additional spectrometers, a new line of sight array for passive spectroscopy, and a coherence imaging charge exchange spectroscopy diagnostic. Progress in data analysis includes ion temperatures and densities from multiple impurity species, a statistical comparison with x-ray crystal spectrometer measurements, neutral density measurements from thermal passive Balmer-alpha emission, and a Bayesian analysis of active hydrogen emission, which is able to infer electron density and main ion temperature profiles.

UR - https://www.scopus.com/pages/publications/85201253797

UR - https://www.scopus.com/pages/publications/85201253797#tab=citedBy

U2 - 10.1063/5.0219469

DO - 10.1063/5.0219469

M3 - Article

C2 - 39136650

SN - 0034-6748

VL - 95

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 8

M1 - 083526

ER -

Visible core spectroscopy at Wendelstein 7-X

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this