Preliminary Design of Laser - induced Breakd own Spectroscopy for Proto - MPEX

Conference · Tue Dec 31 23:00:00 EST 2013

OSTI ID:1147713

Shaw, Guinevere C ^[1]; Biewer, T. M. ^[2]; Martin, Madhavi Z ^[1]; Martin, Rodger Carl ^[1]

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1. ORNL
2. Oak Ridge National Laboratory (ORNL)

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 (ORNL) 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.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: ORNL LDRD Director's R&D
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1147713
• Country of Publication: United States
• Language: English

Related Subjects

Laser Induced Breakdown Spectroscopy
Plasma Material Interactions
Proto-MPEX