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Infrared thermography of the DIII-D divertor targets

Conference ·
OSTI ID:6986067

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. =20 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. 5 refs., 4 figs.

Research Organization:
General Atomics Co., San Diego, CA (USA)
DOE Contract Number:
AC03-84ER51044
OSTI ID:
6986067
Report Number(s):
GA-A19183; CONF-880364-26; ON: DE88010829
Country of Publication:
United States
Language:
English

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