Design of a digital holography system for PFC erosion measurements on Proto-MPEX

Conference · Fri Jan 01 04:00:00 EST 2016

OSTI ID:1330537

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

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1. ORNL
2. Tri Alpha Energy, Inc.
3. Princeton Plasma Physics Laboratory (PPPL)

A project has been started at ORNL to develop a dual-wavelength digital holography system for plasma facing component (PFC) erosion measurements on Proto-MPEX. Such a system will allow in-situ real-time measurements of component erosion. Initially the system will be developed with one laser, and first experimental laboratory measurements will be made with the single laser system. In the second year of development a second CO2 laser will be added and measurements with the dual wavelength system will begin. Adding the second wavelength allows measurements at a much longer synthetic wavelength equal to the average of the two wavelengths times the average divided by the difference of the two wavelengths.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: ORNL LDRD Director's R&D
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1330537
• Country of Publication: United States
• Language: English

Related Subjects

plasma diagnostics digital holography