Diagnostics for molybdenum and tungsten erosion and transport in NSTX-U
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Princeton Plasma Physics Laboratory
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
A comprehensive set of spectroscopic diagnostics is planned in the National Spherical Torus Experi- ment Upgrade to connect measurements of molybdenum and tungsten divertor sources to scrape-off layer (SOL) and core impurity transport, supporting the installation of high-Z plasma facing compo- nents which is scheduled to begin with a row of molybdenum tiles. Imaging with narrow-bandpass interference filters and high-resolution spectroscopy will be coupled to estimate divertor impurity influxes. Vacuum ultraviolet and extreme ultraviolet spectrometers will allow connecting high-Z sources to SOL transport and core impurity content. The high-Z diagnostics suite complements the existing measurements for low-Z impurities (carbon and lithium), critical for the characterization of sputtering of high-Z materials.
- Research Organization:
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
- DOE Contract Number:
- AC02-09CH11466
- OSTI ID:
- 1367164
- Country of Publication:
- United States
- Language:
- English
Diagnostics for molybdenum and tungsten erosion and transport in NSTX-U
|
journal | October 2016 |
Diagnostics for molybdenum and tungsten erosion and transport in NSTX-U
|
journal | October 2016 |
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