Velocity Field Estimation using Tomography in a Cylindrical Plasma

Daiki Nishimura; Akihide Fujisawa; Yoshihiko Nagashima; Chanho Moon; Kotaro Yamasaki; Takashi Nishizawa; Taiki Kobayashi; Tatsuya Kobayashi; Akihiro Shimizu; Tokihiko Tokuzawa

doi:10.1585/PFR.19.1201005

Velocity Field Estimation using Tomography in a Cylindrical Plasma

Daiki Nishimura, Akihide Fujisawa, Yoshihiko Nagashima, Chanho Moon, Kotaro Yamasaki, Takashi Nishizawa, Taiki Kobayashi, Tatsuya Kobayashi, Akihiro Shimizu, Tokihiko Tokuzawa

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

Abstract

This article presents a new method, called extended Rotational Movement Analysis (e-RoMA), to estimate the velocity field of a cylindrical plasma from its two-dimensional images based on Fourier-Bessel function expansion. The proposed method is applied to tomography images of a plasma produced in a linear cylindrical device PANTA and succeeded in obtaining the two- dimensional velocity field. The first results suggest an issue to be investigated, that is, the presence of azimuthal asymmetry in the velocity field.

Original language	English
Article number	1201005
Journal	Plasma and Fusion Research
Volume	19
DOIs	https://doi.org/10.1585/PFR.19.1201005
Publication status	Published - 2024

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1585/PFR.19.1201005

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title = "Velocity Field Estimation using Tomography in a Cylindrical Plasma",

abstract = "This article presents a new method, called extended Rotational Movement Analysis (e-RoMA), to estimate the velocity field of a cylindrical plasma from its two-dimensional images based on Fourier-Bessel function expansion. The proposed method is applied to tomography images of a plasma produced in a linear cylindrical device PANTA and succeeded in obtaining the two- dimensional velocity field. The first results suggest an issue to be investigated, that is, the presence of azimuthal asymmetry in the velocity field.",

keywords = "cylindrical plasma, plasma emission, tomography, velocimetry",

author = "Daiki Nishimura and Akihide Fujisawa and Yoshihiko Nagashima and Chanho Moon and Kotaro Yamasaki and Takashi Nishizawa and Taiki Kobayashi and Tatsuya Kobayashi and Akihiro Shimizu and Tokihiko Tokuzawa",

note = "Publisher Copyright: {\textcopyright} 2024 The Japan Society of Plasma Science and Nuclear Fusion Research",

year = "2024",

doi = "10.1585/PFR.19.1201005",

language = "English",

volume = "19",

journal = "Plasma and Fusion Research",

issn = "1880-6821",

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

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T1 - Velocity Field Estimation using Tomography in a Cylindrical Plasma

AU - Nishimura, Daiki

AU - Fujisawa, Akihide

AU - Nagashima, Yoshihiko

AU - Moon, Chanho

AU - Yamasaki, Kotaro

AU - Nishizawa, Takashi

AU - Kobayashi, Taiki

AU - Kobayashi, Tatsuya

AU - Shimizu, Akihiro

AU - Tokuzawa, Tokihiko

PY - 2024

Y1 - 2024

N2 - This article presents a new method, called extended Rotational Movement Analysis (e-RoMA), to estimate the velocity field of a cylindrical plasma from its two-dimensional images based on Fourier-Bessel function expansion. The proposed method is applied to tomography images of a plasma produced in a linear cylindrical device PANTA and succeeded in obtaining the two- dimensional velocity field. The first results suggest an issue to be investigated, that is, the presence of azimuthal asymmetry in the velocity field.

AB - This article presents a new method, called extended Rotational Movement Analysis (e-RoMA), to estimate the velocity field of a cylindrical plasma from its two-dimensional images based on Fourier-Bessel function expansion. The proposed method is applied to tomography images of a plasma produced in a linear cylindrical device PANTA and succeeded in obtaining the two- dimensional velocity field. The first results suggest an issue to be investigated, that is, the presence of azimuthal asymmetry in the velocity field.

KW - cylindrical plasma

KW - plasma emission

KW - tomography

KW - velocimetry

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DO - 10.1585/PFR.19.1201005

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VL - 19

JO - Plasma and Fusion Research

JF - Plasma and Fusion Research

M1 - 1201005

ER -

Velocity Field Estimation using Tomography in a Cylindrical Plasma

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