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Comparative analysis of the plasma parameters of ECR and combined ECR + RF discharges in the TOMAS plasma facility

Yu Kovtun, T. Wauters, Andrei Goriaev (UGent) , S. Möller, D. López-Rodríguez, Kristel Crombé (UGent) , S. Brezinsek, A. Dinklage, D. Nicolai, Ch. Linsmeier, et al.
(2021) PLASMA PHYSICS AND CONTROLLED FUSION. 63(12).
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Abstract
The toroidal magnetized system (TOMAS) plasma facility aims at complementary research on wall conditioning methods, plasma production and plasma-surface interaction studies. This paper explores for the first time the parameters in helium electron-cyclotron resonance (ECR) plasma and combined ECR + radio-frequency (RF) discharges in TOMAS. The ECR discharge in this work, at 2.45 GHz and 87.6 mT, is the main one for creating and maintaining the plasma, while the addition of RF power at 25 MHz allows to broaden the achievable electron temperature and density at a given gas flow, as evidenced by triple Langmuir probe measurements. This effect of the combined ECR + RF discharge provides flexibility to study particular aspects of wall conditioning techniques relevant to larger devices, or to approach plasma conditions relevant to fusion edge plasmas for particular surface interaction studies.
Keywords
ECR, RF, magnetized discharge, triple probe, TOMAS, LANGMUIR PROBES, TRIPLE, IONIZATION, BALANCE, DESIGN, SYSTEM

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MLA
Kovtun, Yu, et al. “Comparative Analysis of the Plasma Parameters of ECR and Combined ECR + RF Discharges in the TOMAS Plasma Facility.” PLASMA PHYSICS AND CONTROLLED FUSION, vol. 63, no. 12, 2021, doi:10.1088/1361-6587/ac3471.
APA
Kovtun, Y., Wauters, T., Goriaev, A., Möller, S., López-Rodríguez, D., Crombé, K., … Petersson, P. (2021). Comparative analysis of the plasma parameters of ECR and combined ECR + RF discharges in the TOMAS plasma facility. PLASMA PHYSICS AND CONTROLLED FUSION, 63(12). https://doi.org/10.1088/1361-6587/ac3471
Chicago author-date
Kovtun, Yu, T. Wauters, Andrei Goriaev, S. Möller, D. López-Rodríguez, Kristel Crombé, S. Brezinsek, et al. 2021. “Comparative Analysis of the Plasma Parameters of ECR and Combined ECR + RF Discharges in the TOMAS Plasma Facility.” PLASMA PHYSICS AND CONTROLLED FUSION 63 (12). https://doi.org/10.1088/1361-6587/ac3471.
Chicago author-date (all authors)
Kovtun, Yu, T. Wauters, Andrei Goriaev, S. Möller, D. López-Rodríguez, Kristel Crombé, S. Brezinsek, A. Dinklage, D. Nicolai, Ch. Linsmeier, M. Van Schoor, Johan Buermans, S. Moon, R. Ragona, and P. Petersson. 2021. “Comparative Analysis of the Plasma Parameters of ECR and Combined ECR + RF Discharges in the TOMAS Plasma Facility.” PLASMA PHYSICS AND CONTROLLED FUSION 63 (12). doi:10.1088/1361-6587/ac3471.
Vancouver
1.
Kovtun Y, Wauters T, Goriaev A, Möller S, López-Rodríguez D, Crombé K, et al. Comparative analysis of the plasma parameters of ECR and combined ECR + RF discharges in the TOMAS plasma facility. PLASMA PHYSICS AND CONTROLLED FUSION. 2021;63(12).
IEEE
[1]
Y. Kovtun et al., “Comparative analysis of the plasma parameters of ECR and combined ECR + RF discharges in the TOMAS plasma facility,” PLASMA PHYSICS AND CONTROLLED FUSION, vol. 63, no. 12, 2021.
@article{8760943,
  abstract     = {{The toroidal magnetized system (TOMAS) plasma facility aims at complementary research on wall conditioning methods, plasma production and plasma-surface interaction studies. This paper explores for the first time the parameters in helium electron-cyclotron resonance (ECR) plasma and combined ECR + radio-frequency (RF) discharges in TOMAS. The ECR discharge in this work, at 2.45 GHz and 87.6 mT, is the main one for creating and maintaining the plasma, while the addition of RF power at 25 MHz allows to broaden the achievable electron temperature and density at a given gas flow, as evidenced by triple Langmuir probe measurements. This effect of the combined ECR + RF discharge provides flexibility to study particular aspects of wall conditioning techniques relevant to larger devices, or to approach plasma conditions relevant to fusion edge plasmas for particular surface interaction studies.}},
  articleno    = {{125023}},
  author       = {{Kovtun, Yu and Wauters, T. and Goriaev, Andrei and Möller, S. and López-Rodríguez, D. and Crombé, Kristel and Brezinsek, S. and Dinklage, A. and Nicolai, D. and Linsmeier, Ch. and Van Schoor, M. and Buermans, Johan and Moon, S. and Ragona, R. and Petersson, P.}},
  issn         = {{0741-3335}},
  journal      = {{PLASMA PHYSICS AND CONTROLLED FUSION}},
  keywords     = {{ECR,RF,magnetized discharge,triple probe,TOMAS,LANGMUIR PROBES,TRIPLE,IONIZATION,BALANCE,DESIGN,SYSTEM}},
  language     = {{eng}},
  number       = {{12}},
  pages        = {{12}},
  title        = {{Comparative analysis of the plasma parameters of ECR and combined ECR + RF discharges in the TOMAS plasma facility}},
  url          = {{http://doi.org/10.1088/1361-6587/ac3471}},
  volume       = {{63}},
  year         = {{2021}},
}
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