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Electron density profile measurements from hydrogen line intensity ratio method in Versatile Experiment Spherical Torus.
Kim, YooSung; Shi, Yue-Jiang; Yang, Jeong-Hun; Kim, SeongCheol; Kim, Young-Gi; Dang, Jeong-Jeung; Yang, Seongmoo; Jo, Jungmin; Oh, Soo-Ghee; Chung, Kyoung-Jae; Hwang, Y S.
Afiliação
  • Kim Y; Department of Nuclear Engineering, Seoul National University, Seoul 151-744, South Korea.
  • Shi YJ; Department of Nuclear Engineering, Seoul National University, Seoul 151-744, South Korea.
  • Yang JH; Department of Nuclear Engineering, Seoul National University, Seoul 151-744, South Korea.
  • Kim S; Department of Nuclear Engineering, Seoul National University, Seoul 151-744, South Korea.
  • Kim YG; Department of Nuclear Engineering, Seoul National University, Seoul 151-744, South Korea.
  • Dang JJ; Department of Nuclear Engineering, Seoul National University, Seoul 151-744, South Korea.
  • Yang S; Department of Nuclear Engineering, Seoul National University, Seoul 151-744, South Korea.
  • Jo J; Department of Nuclear Engineering, Seoul National University, Seoul 151-744, South Korea.
  • Oh SG; Division of Energy Systems Research, Ajou University, Suwon 442-749, South Korea.
  • Chung KJ; Department of Nuclear Engineering, Seoul National University, Seoul 151-744, South Korea.
  • Hwang YS; Department of Nuclear Engineering, Seoul National University, Seoul 151-744, South Korea.
Rev Sci Instrum ; 87(11): 11E540, 2016 Nov.
Article em En | MEDLINE | ID: mdl-27910347
ABSTRACT
Electron density profiles of versatile experiment spherical torus plasmas are measured by using a hydrogen line intensity ratio method. A fast-frame visible camera with appropriate bandpass filters is used to detect images of Balmer line intensities. The unique optical system makes it possible to take images of Hα and Hß radiation simultaneously, with only one camera. The frame rate is 1000 fps and the spatial resolution of the system is about 0.5 cm. One-dimensional local emissivity profiles have been obtained from the toroidal line of sight with viewing dumps. An initial result for the electron density profile is presented and is in reasonable agreement with values measured by a triple Langmuir probe.
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Base de dados: MEDLINE Idioma: En Ano de publicação: 2016 Tipo de documento: Article
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Base de dados: MEDLINE Idioma: En Ano de publicação: 2016 Tipo de documento: Article