Preliminary design of laser-induced breakdown spectroscopy for proto-Material Plasma Exposure eXperiment

Journal Article · Fri Nov 14 23:00:00 EST 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4885472· OSTI ID:22308792

Martin, M. Z.; Martin, R.; Biewer, T. M. ^[1]

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1. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830 (United States)

Laser-induced breakdown spectroscopy (LIBS) is a technique for measuring surface matter composition. LIBS is performed by focusing laser radiation onto a target surface, ablating the surface, forming a plasma, and analyzing the light produced. LIBS surface analysis is a possible diagnostic for characterizing plasma-facing materials in ITER. Oak Ridge National Laboratory has enabled the initial installation of a laser-induced breakdown spectroscopy diagnostic on the prototype Material-Plasma Exposure eXperiment (Proto-MPEX), which strives to mimic the conditions found at the surface of the ITER divertor. This paper will discuss the LIBS implementation on Proto-MPEX, preliminary design of the fiber optic LIBS collection probe, and the expected results.

• OSTI ID: 22308792
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 11 Vol. 85; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ABUNDANCE
EXPERIMENTAL DATA
FIBER OPTICS
FIRST WALL
FOCUSING
ITER TOKAMAK
LASER RADIATION
LASER TARGETS
PLASMA
PROBES
SPECTROSCOPY
SURFACE PROPERTIES
SURFACES
VISIBLE RADIATION