High speed infrared camera diagnostic for heat flux measurement in NSTX.
A new high speed infrared camera has been successfully implemented and produced first set of heat flux measurements on the lower divertor tiles in the NSTX tokamak. High spatial and temporal resolutions, 6.4 mm and 1.6-6.3 kHz, respectively, enable us to investigate detailed structure of heat flux deposition pattern caused by transient events such as edge localized modes. A comparison of the data with a slow infrared camera viewing the same region of interest shows good agreement between the two independent measurements. Data analysis for various plasma conditions is in progress.
Ahn
J-W
JW
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
Maingi
R
R
Mastrovito
D
D
Roquemore
A L
AL