A Langmuir probe diagnostic for time-of-flight measurements of transient plasmas produced by high-energy laser ablation

We discuss here the development of a Langmuir probe (LP) diagnostic to examine high-density, high-temperature inhomogeneous plasmas such as those that can be created at the University of Rochester's Laboratory for Laser Energetics OMEGA facility. We have configured our diagnostic to examine the...

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Bibliographic Details
Published in:Review of scientific instruments 2012-10, Vol.83 (10), p.10D725-10D725
Main Authors: Patterson, J R, Emig, J A, Fournier, K B, Jenkins, P P, Trautz, K M, Seiler, S W, Davis, J F
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ABLATION
Atomic structure
DENSITY
Diagnostic systems
INHOMOGENEOUS PLASMA
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
IONIZATION
LANGMUIR PROBE
Laser ablation
LASER RADIATION
Lasers
PLASMA PRODUCTION
Plasmas
SPECTROSCOPY
TIME-OF-FLIGHT METHOD
TRANSIENTS
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Summary:We discuss here the development of a Langmuir probe (LP) diagnostic to examine high-density, high-temperature inhomogeneous plasmas such as those that can be created at the University of Rochester's Laboratory for Laser Energetics OMEGA facility. We have configured our diagnostic to examine the velocity of the plasma expanding from the target. We observe velocities of approximately 16-17 cm/μs, with individual LP currents displaying complex structures, perhaps due to the multiple atomic species and ionization states that exist.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4739312