Visible charge exchange recombination spectroscopy on TFTR

Conference · Fri Mar 01 00:00:00 EST 1991

OSTI ID:5906083

Stratton, B C; Fonck, R J; Jaehnig, K P; Schechtman, N; Synakowski, E J

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.

• Research Organization: Princeton Univ., NJ (USA). Plasma Physics Lab.
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5906083
• Report Number(s): PPPL-2745; CONF-9011197-1; ON: DE91011105
• Resource Relation: Conference: International ATomic Energy Agency (IAEA) technical committee meeting on time resolved two- and three-dimensional plasma diagnostics, Nagoya (Japan), 19-22 Nov 1990
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
TFTR TOKAMAK
SPECTROSCOPY
CHARGE EXCHANGE
CHARGED-PARTICLE TRANSPORT
DATA ACQUISITION SYSTEMS
HELIUM IONS
ION TEMPERATURE
IRON IONS
PHOTODIODES
PLASMA DIAGNOSTICS
PLASMA IMPURITIES
RECOMBINATION
SPATIAL RESOLUTION
CHARGED PARTICLES
IMPURITIES
IONS
RADIATION TRANSPORT
RESOLUTION
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
700102* - Fusion Energy- Plasma Research- Diagnostics