title: Digital holography for in situ real-time measurement of plasma-facing-component erosion.
abstract: 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.
authors.affiliation: Third Dimension Technologies LLC, Knoxville, Tennessee 37931, USA.
authors.forename: C E Tommy
authors.initials: CE
authors.lastname: Thomas
authors.affiliation: Tri-Alpha Energy, Rancho Santa Margarita, California 92688, USA.
authors.forename: E M
authors.initials: EM
authors.lastname: Granstedt
authors.affiliation: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: T M
authors.initials: TM
authors.lastname: Biewer
authors.affiliation: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: L R
authors.initials: LR
authors.lastname: Baylor
authors.affiliation: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: S K
authors.initials: SK
authors.lastname: Combs
authors.affiliation: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: S J
authors.initials: SJ
authors.lastname: Meitner
authors.affiliation: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: D L
authors.initials: DL
authors.lastname: Hillis
authors.affiliation: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
authors.forename: R
authors.initials: R
authors.lastname: Majeski
authors.affiliation: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
authors.forename: R
authors.initials: R
authors.lastname: Kaita