DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
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| Title | 436: Sheath factor measurement in Pisces compared with DIII-D | ||
| Name: | Charles Lasnier ( |
Affiliation: | Lawrence Livermore National Laboratory |
| Research Area: | Thermal Transport in the Plasma Boundary | Presentation time: | Not requested | Co-Author(s): | K. Umstadter, J. Boedo, J. Watkins |
| Description: | Measure the sheath factor for power transmission in Pisces using a DIMES sample which can then be used for the same measurement in DIII-D. | ||
| Experimental Approach/Plan: | use an instrumented carbon sample with a Langmuir probe in Pisces to measure electron temperature and density, and surface tmeprature using an IR camera. | ||
| Background: | We have measured sheath factors different from the theoretical value. The Pisces sheath will be simpler than DIII-D in th absence of a magnetic field, so we should look at that first. Then when we uderstand it, move the sample to DIII-D | ||
| Resource Requirements: | Pisces run time, Langmuir probe instrumented sample, IR camera
DIII-D shots or piggyback. | ||
| Diagnostic Requirements: | IR camera, Langmuir probe | ||
| Analysis Requirements: | Probe and IRTV analysis, compare with sheath model | ||
| Other Requirements: | -- | ||
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