Digital Holography for in Situ Real-Time Measurement of Plasma-Facing-Component Erosion

Conference · Tue Jul 01 00:00:00 EDT 2014

DOI:https://doi.org/10.1063/1.4886435· OSTI ID:1143590

Thomas, C. E. ^[1]; Granstedt, E. M. ^[2]; Biewer, Theodore  ^[3]; Baylor, Larry  ^[3]; Combs, Stephen Kirk  ^[3]; Meitner, Steven  ^[3]; Hillis, Donald Lee  ^[3]; Majeski, R. ^[4]; Kaita, R. ^[4]

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1. Third Dimension Technologies, LLC, Knoxville, TN
2. Tri Alpha Energy, Inc.
3. ORNL
4. Princeton Plasma Physics Laboratory (PPPL)

In situ, real time measurement of net plasma-facing-component (PFC) erosion/deposition in a real plasma device is challenging due to the need for good spatial and temporal resolution, sufficient sensitivity, and immunity to fringe-jump errors. Design of a high-sensitivity, potentially high-speed, dual-wavelength CO2 laser digital holography system (nominally immune to fringe jumps) for PFC erosion measurement is discussed.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1143590
• Resource Relation: Journal Volume: 85; Journal Issue: 11; Conference: 20th Topical Conference on High-Temperature Plasma Diagnostics (HTPD) - Atlanta, Georgia, United States of America - 6/1/2014 12:00:00 AM-6/5/2014 12:00:00 AM
• Country of Publication: United States
• Language: English