Infrared thermography of the DIII-D divertor targets

Journal Article · Mon Aug 01 00:00:00 EDT 1988 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1140040· OSTI ID:7123460

Hill, D N; Ellis, R; Ferguson, W; Perkins, D E; Petrie, T; Baxi, C

The power flow to the DIII-D divertor targets is routinely measured using infrared (IR) thermography. An IR television camera sensitive to radiation in the 8--12-..mu..m range views the divertor region using a set of germanium optics. Digital signal processing is used to extract the desired surface temperature profiles from the analog data (approx. =12 Mbytes) stored on videotape. Inversion of these data using a simple matrix formulation of the inverse heat conduction problem then yields the incident heat flux as a function of space and time. Results from a DIII-D discharge are included.

• Research Organization: Lawrence Livermore National Laboratory, Livermore, California 94550
• OSTI ID: 7123460
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 59:8; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

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47 OTHER INSTRUMENTATION
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
CAMERAS
CLOSED PLASMA DEVICES
DOUBLET-3 DEVICE
IMAGE PROCESSING
INFRARED THERMOGRAPHY
MEASURING METHODS
PLASMA DIAGNOSTICS
PROCESSING
SIGNALS
TELEVISION CAMERAS
THERMOGRAPHY
THERMONUCLEAR DEVICES
TOKAMAK DEVICES