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Laser-Aided Plasma Diagnostics
Fusion Science and Technology, 2004This paper will focus on two types of laser-aided diagnostics: Thomson scattering and laser-induced fluorescence. Thomson scattering is a very powerful diagnostic, which is applied at nearly every magnetic confinement device. Depending on the experimental conditions different plasma parameters can be diagnosed.
Barth, C.J., Donne, A.J. H.
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ORION laser target diagnostics
Review of Scientific Instruments, 2012The ORION laser facility is one of the UK's premier laser facilities which became operational at AWE in 2010. Its primary mission is one of stockpile stewardship, ORION will extend the UK's experimental plasma physics capability to the high temperature, high density regime relevant to Atomic Weapons Establishment's (AWE) program.
C D, Bentley +22 more
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Laser diagnostic methods - A summary
16th Fluid and Plasmadynamics Conference, 1983This is a summary and discussion of the state of the art in the use of laser diagnostics in fluid and plasma dynamics. This will encompass: interferometry, scattering, spectroscopy, and velocimetry. Examples of such applications will be provided in the area of fluid dynamics of particle generation and breakup, analysis of three-dimensional density ...
J. TROLINGER +3 more
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1974 International Conference on Submillimeter Waves and Their Applications, 1974
Diagnostics of the cw-HCN-laser plasma with field and temperature probe, a mass spectrometer, as well as related exoeriments prove that H 2 or D 2 molecules are required as collision partners of the HCN molecules. The formation of laser-active HCN molecules on the tube wall influence the radial gain profile.
H. J. Schötzau, B. Adam, F. Kneubühl
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Diagnostics of the cw-HCN-laser plasma with field and temperature probe, a mass spectrometer, as well as related exoeriments prove that H 2 or D 2 molecules are required as collision partners of the HCN molecules. The formation of laser-active HCN molecules on the tube wall influence the radial gain profile.
H. J. Schötzau, B. Adam, F. Kneubühl
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Femtosecond laser pulse diagnostics
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 1992Special instrumentation is required to measure and analyze laser pulses below one nanosecond because of the limitations of standard instrumentation used to measure real-time signals. We have designed and developed an instrument with unique features to measure the pulsewidth of single laser pulses below one nanosecond using the standard autocorrelation ...
Clarence P. Cain, W. P. Roach
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Cinematographic laser combustion diagnostics
Laser Applications to Chemical, Security and Environmental Analysis, 2008Cinematographic PIV and OH PLIF operated at repetition rates up to 5 kHz are applied simultaneously to identify flow structures that entail extinction in a turbulent opposed jet flame.
Heeger, Christof +4 more
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1980
It is often necessary to characterize the beam emitted from a laser to define potential exposure conditions. The beam’s characteristics may be required near the output of the laser, at some considerable distance from the laser after it has been collimated or focused, or simply at some distance after the beam has left the laser cavity as a “ray beam ...
David Sliney, Myron Wolbarsht
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It is often necessary to characterize the beam emitted from a laser to define potential exposure conditions. The beam’s characteristics may be required near the output of the laser, at some considerable distance from the laser after it has been collimated or focused, or simply at some distance after the beam has left the laser cavity as a “ray beam ...
David Sliney, Myron Wolbarsht
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Applied Physics Letters, 1972
From an interferometric study of the medium in a 10.6-μ transverse electric discharge pulsed laser amplifier, a time history of the index of refraction is presented from t=0 to t=21.5 μsec. These data agree favorably with the predictions based on a linearized hydrodynamic model for pulsed heat deposition in a gas by a row of discrete discharge pins ...
R. W. O'Neil +3 more
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From an interferometric study of the medium in a 10.6-μ transverse electric discharge pulsed laser amplifier, a time history of the index of refraction is presented from t=0 to t=21.5 μsec. These data agree favorably with the predictions based on a linearized hydrodynamic model for pulsed heat deposition in a gas by a row of discrete discharge pins ...
R. W. O'Neil +3 more
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INFRARED PLASMA DIAGNOSTICS WITH LASERS
Infrared Physics, 1976Abstract Infrared lasers have rendered possible measurements of plasma parameters in a range not accessible using either optical or microwave techniques. Diagnostic methods based on the refraction and scattering of radiation by free electrons are discussed.
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