Effects from the Target Plate Geometry on Fluctuations of Helium Plasma in the Linear Divertor Simulator Magnum-PSI

Masayuki Yoshikawa; Hirohiko Tanaka; Yuki Hayashi; Shin Kajita; Hennie J. van der Meiden; Jordy Vernimmen; Thomas Morgan; Junko Kohagura; Yoriko Shima; Satoshi Togo; Naomichi Ezumi; Yousuke Nakashima; Mizuki Sakamoto

doi:10.1585/PFR.17.1402100

Effects from the Target Plate Geometry on Fluctuations of Helium Plasma in the Linear Divertor Simulator Magnum-PSI

Masayuki Yoshikawa (Corresponding author), Hirohiko Tanaka, Yuki Hayashi, Shin Kajita, Hennie J. van der Meiden, Jordy Vernimmen, Thomas Morgan, Junko Kohagura, Yoriko Shima, Satoshi Togo, Naomichi Ezumi, Yousuke Nakashima, Mizuki Sakamoto

Science and Technology of Nuclear Fusion

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

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Abstract

With the help of the linear divertor simulation device Magnum-PSI, a fluctuation investigation of the impact of the target plate geometry was conducted. We simultaneously quantify coherent low-frequency fluctuations with a newly built 70-GHz microwave reflectometry system, a reciprocating probe, a light emission detector system, and a fast-framing camera system. The strong low-frequency fluctuations were observed at both the electron density and the plasma radiations by moving the target plate along the magnetic field line. Furthermore, a strong peak in fluctuation intensity and the influence of the target plate tilt angle on the fluctuation intensity were noted.

Original language	English
Article number	1402100
Number of pages	9
Journal	Plasma and Fusion Research
Volume	17
DOIs	https://doi.org/10.1585/PFR.17.1402100
Publication status	Published - 2022

Bibliographical note

Funding Information:
We greatly thank the Magnum-PSI team for performing fruitful experiments and discussions. This work was partly supported by the PWI international collaboration program and performed with the support and under the auspices of the NIFS Collaboration Research program (NIFS14KUGM086), NIFS/NINS under Young Researchers Supporting Program (UFEX106), and the JSPS KAKENHI (18KK0410, 19K14686).

Keywords

Divertor simulator
Fluctuation
Magnum-psi

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Yoshikawa, M., Tanaka, H., Hayashi, Y., Kajita, S., van der Meiden, H. J., Vernimmen, J., Morgan, T., Kohagura, J., Shima, Y., Togo, S., Ezumi, N., Nakashima, Y., & Sakamoto, M. (2022). Effects from the Target Plate Geometry on Fluctuations of Helium Plasma in the Linear Divertor Simulator Magnum-PSI. Plasma and Fusion Research, 17, Article 1402100. https://doi.org/10.1585/PFR.17.1402100

@article{5390c31b3ac54ea4b0936a38a72bdb6b,

title = "Effects from the Target Plate Geometry on Fluctuations of Helium Plasma in the Linear Divertor Simulator Magnum-PSI",

abstract = "With the help of the linear divertor simulation device Magnum-PSI, a fluctuation investigation of the impact of the target plate geometry was conducted. We simultaneously quantify coherent low-frequency fluctuations with a newly built 70-GHz microwave reflectometry system, a reciprocating probe, a light emission detector system, and a fast-framing camera system. The strong low-frequency fluctuations were observed at both the electron density and the plasma radiations by moving the target plate along the magnetic field line. Furthermore, a strong peak in fluctuation intensity and the influence of the target plate tilt angle on the fluctuation intensity were noted.",

keywords = "Divertor simulator, Fluctuation, Magnum-psi",

author = "Masayuki Yoshikawa and Hirohiko Tanaka and Yuki Hayashi and Shin Kajita and {van der Meiden}, {Hennie J.} and Jordy Vernimmen and Thomas Morgan and Junko Kohagura and Yoriko Shima and Satoshi Togo and Naomichi Ezumi and Yousuke Nakashima and Mizuki Sakamoto",

note = "Funding Information: We greatly thank the Magnum-PSI team for performing fruitful experiments and discussions. This work was partly supported by the PWI international collaboration program and performed with the support and under the auspices of the NIFS Collaboration Research program (NIFS14KUGM086), NIFS/NINS under Young Researchers Supporting Program (UFEX106), and the JSPS KAKENHI (18KK0410, 19K14686). ",

year = "2022",

doi = "10.1585/PFR.17.1402100",

language = "English",

volume = "17",

journal = "Plasma and Fusion Research",

issn = "1880-6821",

publisher = "Japan Society of Plasma Science and Nuclear Fusion Research (JSPF)",

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Yoshikawa, M, Tanaka, H, Hayashi, Y, Kajita, S, van der Meiden, HJ, Vernimmen, J, Morgan, T, Kohagura, J, Shima, Y, Togo, S, Ezumi, N, Nakashima, Y & Sakamoto, M 2022, 'Effects from the Target Plate Geometry on Fluctuations of Helium Plasma in the Linear Divertor Simulator Magnum-PSI', Plasma and Fusion Research, vol. 17, 1402100. https://doi.org/10.1585/PFR.17.1402100

TY - JOUR

T1 - Effects from the Target Plate Geometry on Fluctuations of Helium Plasma in the Linear Divertor Simulator Magnum-PSI

AU - Yoshikawa, Masayuki

AU - Tanaka, Hirohiko

AU - Hayashi, Yuki

AU - Kajita, Shin

AU - van der Meiden, Hennie J.

AU - Vernimmen, Jordy

AU - Morgan, Thomas

AU - Kohagura, Junko

AU - Shima, Yoriko

AU - Togo, Satoshi

AU - Ezumi, Naomichi

AU - Nakashima, Yousuke

AU - Sakamoto, Mizuki

N1 - Funding Information: We greatly thank the Magnum-PSI team for performing fruitful experiments and discussions. This work was partly supported by the PWI international collaboration program and performed with the support and under the auspices of the NIFS Collaboration Research program (NIFS14KUGM086), NIFS/NINS under Young Researchers Supporting Program (UFEX106), and the JSPS KAKENHI (18KK0410, 19K14686).

PY - 2022

Y1 - 2022

N2 - With the help of the linear divertor simulation device Magnum-PSI, a fluctuation investigation of the impact of the target plate geometry was conducted. We simultaneously quantify coherent low-frequency fluctuations with a newly built 70-GHz microwave reflectometry system, a reciprocating probe, a light emission detector system, and a fast-framing camera system. The strong low-frequency fluctuations were observed at both the electron density and the plasma radiations by moving the target plate along the magnetic field line. Furthermore, a strong peak in fluctuation intensity and the influence of the target plate tilt angle on the fluctuation intensity were noted.

AB - With the help of the linear divertor simulation device Magnum-PSI, a fluctuation investigation of the impact of the target plate geometry was conducted. We simultaneously quantify coherent low-frequency fluctuations with a newly built 70-GHz microwave reflectometry system, a reciprocating probe, a light emission detector system, and a fast-framing camera system. The strong low-frequency fluctuations were observed at both the electron density and the plasma radiations by moving the target plate along the magnetic field line. Furthermore, a strong peak in fluctuation intensity and the influence of the target plate tilt angle on the fluctuation intensity were noted.

KW - Divertor simulator

KW - Fluctuation

KW - Magnum-psi

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DO - 10.1585/PFR.17.1402100

M3 - Article

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VL - 17

JO - Plasma and Fusion Research

JF - Plasma and Fusion Research

M1 - 1402100

ER -

Effects from the Target Plate Geometry on Fluctuations of Helium Plasma in the Linear Divertor Simulator Magnum-PSI

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Keywords

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