DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
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| Title | 449: Target Plate Heat flux, sheath power transmission factor, and Power Accounting | ||
| Name: | Jonathan G. Watkins ( |
Affiliation: | Sandia National Laboratories |
| Research Area: | Boundary | Presentation time: | Not requested | Co-Author(s): | Lasnier,Schaffer, Murphy, Leonard, Evans, Joseph, West, Porter, Stangeby |
| Description: | To validate our measurements of heat flux, measure the target plate heat flux profile using several different methods and do a detailed power accounting of DIII-D plasmas at high and low density and for different power levels in both L and H mode and ELM - suppressed H mode. | ||
| Experimental Approach/Plan: | To better measure the target plate heat flux, the outer strike point must be run on the outer shelf in the lower divertor to get good views with the IRTV. Sweeps should be used to get better profiles with the Langmuir probes, and the calorimeter probe. Fixed strike point shots will be needed to simplify analysis of the thermocouple array and calorimeter probe data. The bolometer array will be used to measure the radiated power and generate a total power accounting. The inner strike point should be run on the lower divertor floor in view of the IRTV, Langmuir probes, and the floor TC array. | ||
| Background: | |||
| Resource Requirements: | A working IRTV is required. Electronics are needed for the new tc array and analysis techniques need to be refined to remove magnetic pickup on the signals as was done with the calorimeter probe. | ||
| Diagnostic Requirements: | IRTV
Thermocouple array calorimeter probe Bolometry, Lower Langmuir Probes Thomson CO2 interferometers X-point and Midplane plunging probes Filterscopes Visible Bremsstralung SPRED CER MDS Spectrometry | ||
| Analysis Requirements: | Proper analysis techniques need to be developed to generate heat flux from the tc array data. | ||
| Other Requirements: | -- | ||
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