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Ultrafast spectroscopy diagnostic to measure localized ion temperature and toroidal velocity fluctuations

Publication ,  Conference
Uzun-Kaymak, IU; Fonck, RJ; McKee, GR; Schoenbeck, N; Smith, D; Winz, G; Yan, Z
Published in: Review of Scientific Instruments
October 1, 2010

A dual-channel high-efficiency, high-throughput custom spectroscopic system has been designed and implemented at DIII-D to measure localized ion thermal fluctuations associated with drift wave turbulence. A large-area prism-coupled transmission grating and high-throughput collection optics are employed to observe C VI emission centered near λ=529 nm. The diagnostic achieves 0.25 nm resolution over a 2.0 nm spectral band via eight discrete spectral channels. A turbulence-relevant time resolution of 1 μs is achieved using cooled high-speed avalanche photodiodes and ultralow-noise preamplifiers. The system sensitivity is designed to provide measurements of normalized ion temperature fluctuations on the order of δ Ti/Ti 1%. © 2010 American Institute of Physics.

Duke Scholars

Published In

Review of Scientific Instruments

DOI

ISSN

0034-6748

Publication Date

October 1, 2010

Volume

81

Issue

10

Related Subject Headings

  • Applied Physics
  • 09 Engineering
  • 03 Chemical Sciences
  • 02 Physical Sciences
 

Citation

APA
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ICMJE
MLA
NLM
Uzun-Kaymak, I. U., Fonck, R. J., McKee, G. R., Schoenbeck, N., Smith, D., Winz, G., & Yan, Z. (2010). Ultrafast spectroscopy diagnostic to measure localized ion temperature and toroidal velocity fluctuations. In Review of Scientific Instruments (Vol. 81). https://doi.org/10.1063/1.3479114
Uzun-Kaymak, I. U., R. J. Fonck, G. R. McKee, N. Schoenbeck, D. Smith, G. Winz, and Z. Yan. “Ultrafast spectroscopy diagnostic to measure localized ion temperature and toroidal velocity fluctuations.” In Review of Scientific Instruments, Vol. 81, 2010. https://doi.org/10.1063/1.3479114.
Uzun-Kaymak IU, Fonck RJ, McKee GR, Schoenbeck N, Smith D, Winz G, et al. Ultrafast spectroscopy diagnostic to measure localized ion temperature and toroidal velocity fluctuations. In: Review of Scientific Instruments. 2010.
Uzun-Kaymak, I. U., et al. “Ultrafast spectroscopy diagnostic to measure localized ion temperature and toroidal velocity fluctuations.” Review of Scientific Instruments, vol. 81, no. 10, 2010. Scopus, doi:10.1063/1.3479114.
Uzun-Kaymak IU, Fonck RJ, McKee GR, Schoenbeck N, Smith D, Winz G, Yan Z. Ultrafast spectroscopy diagnostic to measure localized ion temperature and toroidal velocity fluctuations. Review of Scientific Instruments. 2010.

Published In

Review of Scientific Instruments

DOI

ISSN

0034-6748

Publication Date

October 1, 2010

Volume

81

Issue

10

Related Subject Headings

  • Applied Physics
  • 09 Engineering
  • 03 Chemical Sciences
  • 02 Physical Sciences