DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
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| Title | 465: Gas Puff Imaging | ||
| Name: | Jonathan Yu ( |
Affiliation: | University of California, San Diego |
| Research Area: | Boundary | Presentation time: | Not requested | Co-Author(s): | J. Boedo, T. Evans, E. Hollmann, R. Moyer, D. Rudakov, G. Tynan |
| Description: | Vary collisionality and use the fast framing camera with gas puffing to study filament dynamics during L-mode and during inter-ELM H-mode. | ||
| Experimental Approach/Plan: | Gas puffing might be possible during the 2008 run using existing capillary gas lines located near the midplane. | ||
| Background: | The UCSD fast camera is a useful tool for studying and validating ELM and intermittent transport models. However, the existing camera is limited by emission intensity to a marginal frame rate of ~ 10,000 fps, while the maximum capability of the camera is > 100,000 fps. Using a gas puff system combined with the existing fast camera, edge turbulence, ELM, and RMP studies may be enhanced. This proposal does not require new hardware for gas puffing; instead, we would like to use any existing capillary gas lines located near the midplane within the fast camera field-of-view. | ||
| Resource Requirements: | -- | ||
| Diagnostic Requirements: | -- | ||
| Analysis Requirements: | -- | ||
| Other Requirements: | -- | ||
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