Visible charge exchange recombination spectroscopy on TFTR

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Visible charge exchange recombination spectroscopy is routinely used to measure the time evolution of the ion temperature (T{sub i}) and toroidal rotation velocity (v{sub {phi}}) profiles on TFTR. These measurements are made with the CHERS diagnostic, a fiber-optically coupled spectrometer equipped with a two-dimensional photodiode array detector which provides both spectral and spatial resolution. The instrumentation, data analysis techniques, and examples of T{sub i} and v{sub {phi}} measurements are described. Recently, CHERS has been used to perform impurity transport experiments: radial profiles of diffusivities and convective velocities for helium and iron have been deduced from measurements of the time evolutions ... continued below

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Pages: (18 p)

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Stratton, B.C.; Fonck, R.J.; Jaehnig, K.P.; Schechtman, N. & Synakowski, E.J. March 1, 1991.

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Visible charge exchange recombination spectroscopy is routinely used to measure the time evolution of the ion temperature (T{sub i}) and toroidal rotation velocity (v{sub {phi}}) profiles on TFTR. These measurements are made with the CHERS diagnostic, a fiber-optically coupled spectrometer equipped with a two-dimensional photodiode array detector which provides both spectral and spatial resolution. The instrumentation, data analysis techniques, and examples of T{sub i} and v{sub {phi}} measurements are described. Recently, CHERS has been used to perform impurity transport experiments: radial profiles of diffusivities and convective velocities for helium and iron have been deduced from measurements of the time evolutions of He{sup 2+} and Fe{sup 24+} profiles following impurity injection. Examples of these measurements are given. 12 refs., 8 figs.

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Pages: (18 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • International ATomic Energy Agency (IAEA) technical committee meeting on time resolved two- and three-dimensional plasma diagnostics, Nagoya (Japan), 19-22 Nov 1990

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  • Other: DE91011105
  • Report No.: PPPL-2745
  • Report No.: CONF-9011197--1
  • Grant Number: AC02-76CH03073
  • Office of Scientific & Technical Information Report Number: 5906083
  • Archival Resource Key: ark:/67531/metadc1096306

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  • March 1, 1991

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  • Feb. 18, 2018, 3:59 p.m.

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  • May 11, 2018, 5:29 p.m.

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Stratton, B.C.; Fonck, R.J.; Jaehnig, K.P.; Schechtman, N. & Synakowski, E.J. Visible charge exchange recombination spectroscopy on TFTR, article, March 1, 1991; New Jersey. (https://digital.library.unt.edu/ark:/67531/metadc1096306/: accessed March 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.