Measurement of derivative of ion temperature using high spatial resolution charge exchange spectroscopy with space modulation optics

K. Ida; Y. Sakamoto; M. Yoshinuma; S. Inagaki; T. Kobuchi; G. Matsunaga; Y. Koide

doi:10.1063/1.2921702

Measurement of derivative of ion temperature using high spatial resolution charge exchange spectroscopy with space modulation optics

K. Ida, Y. Sakamoto, M. Yoshinuma, S. Inagaki, T. Kobuchi, G. Matsunaga, Y. Koide

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

22 Citations (Scopus)

Abstract

A new technique to measure the first and second derivatives of the ion temperature profile has been developed by using a charge exchange spectroscopy system with space modulation optics. The space observed is scanned up to ±3 cm with a cosine wave modulation frequency up to 30 Hz by shifting the object lens in front of the optical fiber bundle by 0.5 mm with a piezoelement. The first and second derivatives of ion temperature are derived from the modulation component of the ion temperature measured by using Fourier series expansion.

Original language	English
Article number	053506
Journal	Review of Scientific Instruments
Volume	79
Issue number	5
DOIs	https://doi.org/10.1063/1.2921702
Publication status	Published - 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Instrumentation

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10.1063/1.2921702

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abstract = "A new technique to measure the first and second derivatives of the ion temperature profile has been developed by using a charge exchange spectroscopy system with space modulation optics. The space observed is scanned up to ±3 cm with a cosine wave modulation frequency up to 30 Hz by shifting the object lens in front of the optical fiber bundle by 0.5 mm with a piezoelement. The first and second derivatives of ion temperature are derived from the modulation component of the ion temperature measured by using Fourier series expansion.",

author = "K. Ida and Y. Sakamoto and M. Yoshinuma and S. Inagaki and T. Kobuchi and G. Matsunaga and Y. Koide",

note = "Funding Information: We would like to thank the JT-60 Team for their effort to support the experiment in JT-60U. This work is partly supported by a Grant-in-aid for Scientific Research (No. 18206094) and the Grant-in-Aid for Specially-Promoted Research (No. 17044010) of MEXT Japan. ",

year = "2008",

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T1 - Measurement of derivative of ion temperature using high spatial resolution charge exchange spectroscopy with space modulation optics

AU - Ida, K.

AU - Sakamoto, Y.

AU - Yoshinuma, M.

AU - Inagaki, S.

AU - Kobuchi, T.

AU - Matsunaga, G.

AU - Koide, Y.

N1 - Funding Information: We would like to thank the JT-60 Team for their effort to support the experiment in JT-60U. This work is partly supported by a Grant-in-aid for Scientific Research (No. 18206094) and the Grant-in-Aid for Specially-Promoted Research (No. 17044010) of MEXT Japan.

PY - 2008

Y1 - 2008

N2 - A new technique to measure the first and second derivatives of the ion temperature profile has been developed by using a charge exchange spectroscopy system with space modulation optics. The space observed is scanned up to ±3 cm with a cosine wave modulation frequency up to 30 Hz by shifting the object lens in front of the optical fiber bundle by 0.5 mm with a piezoelement. The first and second derivatives of ion temperature are derived from the modulation component of the ion temperature measured by using Fourier series expansion.

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Measurement of derivative of ion temperature using high spatial resolution charge exchange spectroscopy with space modulation optics

Abstract

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