Erosion results from DiMES and design implications to ITER and Starlite
Journal Article
·
· Fusion Technology
OSTI ID:447397
- General Atomics, San Diego, CA (United States)
- INRS, Varennes, Quebec (Canada)
- Sandia National Lab., Livermore, CA (United States)
- Sandia National Lab., Albuquerque, NM (United States)
Using the DiMES mechanism at DIII-D, erosion rates of graphite, and metallic coatings of Be, V, Mo, and W have been measured under different plasma operating conditions. The measured net erosion rate for C is substantial (16 nm/s) during ELMing H-mode at a heat flux of 2 MW/m{sup 2}. Measured gross erosion rates of the metals are lower than expected from sputtering yields, most likely due to heavy surface contamination by carbon. The measured erosion of W is substantially lower than the other materials, and when account is taken for redeposition, it is shown to be a viable candidate for the Starlite reactor`s divertor. 15 refs., 1 fig., 1 tab.
- DOE Contract Number:
- AC03-89ER51114; AC04-94AL85000; W-31109-ENG-38
- OSTI ID:
- 447397
- Report Number(s):
- CONF-9606116-; ISSN 0748-1896; TRN: 97:005371
- Journal Information:
- Fusion Technology, Vol. 30, Issue 3; Conference: Annual meeting of the American Nuclear Society (ANS), Reno, NV (United States), 16-20 Jun 1996; Other Information: PBD: 1996
- Country of Publication:
- United States
- Language:
- English
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