... Descriptors : *DIODE LASERS, *TUNABLE LASERS, *SPECTROSCOPY, *ABSORPTION SPECTRA, LASER DIAGNOSTICS, COMBUSTION ...

This paper discusses the following topics on plasma diagnostics: Electric probes in flowing and magnetized plasmas; Electron cyclotron emission absorption; Magnetic diagnostics; Spectroscopy; and Thomson Scattering.

This paper discusses the following topics on plasma diagnostics: Electric probes in flowing and magnetized plasmas; Electron cyclotron emission absorption; Magnetic diagnostics; Spectroscopy; and Thomson Scattering.

... The techniques studied were based on laser spectroscopy, with emphasis on spectrally-resolved absorption and laser-induced fluorescence (LIF). ...

Fourier transform infrared (FTIR) spectroscopy, broadband ultraviolet (UV) absorption spectroscopy, a compensated Langmuir probe. Additional diagnostics. ...

Work to develop novel advanced laser spectroscopy plasma diagnostic methods is described. The methods are based on observing the doppler shift in the absorption liners of ionic species. Two methods under study are Velocity Modulated Laser Spectroscopy and...

The density resolution of a measurement system using laser absorption spectroscopy is evaluated in order to diagnose a fraction of metastable helium atoms (2 3S1) in a neutral helium beam. Experiments performed in a hollow cathode device show that the density resolution of the present system is about 5 � 1013 m-3 for a 1 m absorption ...

... X ray absorption analysis, Plasma diagnostics ... Carbon dioxide lasers, X ray spectroscopy, Gas ... Charged particles, Emission spectra, Ultraviolet ...

... Abstract : Low-Mach-number shock waves propagating through a low-pressure ... has also been measured by diode-laser absorption spectroscopy in ...

An optical diagnostic technique for electric field measurement in plasma is presented which is based on observing the Doppler shift in absorption lines due to ion drift.

The Atomic Vapor Laser Isotope Separation (AVLIS) program has been using laser absorption spectroscopy to monitor vapor densities for over 15 years. Laser absorption spectroscopy has proven itself to be an accurate and reliable method to monitor both density and composition. During this time the ...

The atomic vapor laser isotope separation (AVLIS) program has been using laser absorption spectroscopy to monitor vapor densities for over 15 years. Laser absorption spectroscopy has proven itself to be an accurate and reliable method to monitor both density and composition. During this time the ...

Advanced optical diagnostic techniques relevant to propulsion were investigated. The techniques studied were based on laser spectroscopy, with emphasis on spectrally-resolved absorption and laser-induced fluorescence (LIF). Laser sources included tunable ...

Advanced optical diagnostic techniques relevant to propulsion were investigated The techniques studied were based on laser spectroscopy. with emphasis on spectrally-resolved absorption and laser-induced fluorescence (LIF). Laser sources included tunable c...

Advanced optical diagnostic techniques relevant to propulsion were investigated. The techniques studied were based on laser spectroscopy, with emphasis on spectrally-resolved absorption and laser-induced fluorescence (LIF). Laser sources included tunable ...

Advanced optical diagnostic techniques relevant to propulsion were investigated. The techniques studied were based on laser spectroscopy, with emphasis on spectrally-resolved absorption and laser-induced fluorescence (LIF). Laser sources included tunable ...

Advanced optical diagnostic techniques relevant to propulsion were investigated. The techniques studied were based on laser spectroscopy, with emphasis on spectrally-resolved absorption and laser-induced fluorescence (LIF) . Spectrally narrow, continuous ...

The first direct measurement of the fluorine-atom ground state fine structure transition, using diode laser absorption spectroscopy, is reported. The fine structure absorption line position (spin-orbit energy splitting), measured with high precision relat...

... high resolution IR absorption spectroscopy in ... Descriptors : *HYDROGEN, *ABSORPTION, *SOLID ... PROPERTIES, INFRARED SPECTROSCOPY ...

This letter describes the extension of saturated absorption spectroscopy to spatially resolved (point) absorption measurements for diagnostic applications. The technique modifies the standard configuration of Doppler-free saturation spectroscopy by using crossed, rather than counterpropagating, ...

Laser absorption spectroscopy is an appreciated diagnostic in plasma physics to measure atomic and ionic densities. We used it here more specifically on metallic plasmas. Firstly, a uranium plasma was created in a hollow cathode. 17 levels of U.I and U.II...

Characteristics of laser plasmas used for pulsed laser deposition (PLD) of thin films are examined with four in situ diagnostic techniques: Optical emission spectroscopy, optical absorption spectroscopy, ion probe studies, and gated ICCD (intensified char...

This is a combined experimental and theoretical analysis of tracer layers as spectral diagnostics for radiation burn-through of ablator materials. German-doped plastic is attached as a witness plate to a laser driven hohlraum. Backlit absorption spectroscopy is used as a diagnostic. Target shots were performed on ...

The Stennis Space Center has been at the forefront of development and application of exhaust plume spectroscopy to rocket engine health monitoring since 1989. Various spectroscopic techniques, such as emission, absorption, FTIR, LIF, and CARS, have been c...

Abstracts of papers on the following topics are provided: Fast reactions and energy transfer processes -- Advanced diagnostics (Theory of reaction kinetics, Time resolved absorption and emission spectroscopies electronically excited states, Fast ionic rea...

... Carter, and T. Mathur, "Near-infrared diode laser ... spectroscopic parameters in the near-IR (6940-7440 cm ... line-of-sight absorption spectroscopy," 4 4 ...

... Title : ULTRASONIC ABSORPTION SPECTROSCOPY IN FLUIDS BY OPTICAL DETECTION OF PHOTOACOUSTIC PULSE PROFILES. ...

TUNABLE DIODE LASER ABSORPTION SPECTROSCOPY VERIFICATION ANALYSIS FOR USE IN THE COMBUSTION OPTIMIZATION AND ...

... Accession Number : AD0422032. Title : THE USE OF INFRARED ABSORPTION SPECTROSCOPY IN RESEARCH ON HAFNIA AND ZIRCONIA. ...

... Accession Number : AD0606049. Title : ATOMIC ABSORPTION SPECTROSCOPY. Descriptive Note : Final rept. Corporate ...

... Accession Number : ADD752978. Title : AEROSOL ABSORPTION SPECTROSCOPY. Descriptive Note : CONFERENCE PAPER. ...

... Title : A STUDY OF OPTICAL ABSORPTION SPECTROSCOPY FROM METASTABLE EXCITED STATES OF TRANSITION METALS IONS IN ...

Transient absorption spectra from 390-890 nm of laser shocked RDX, PETN, sapphire, and polyvinylnitrate (PVN) at sub-nanosecond time scales are reported. RDX shows a nearly linear increase in absorption with time after shock at {approx}23 GPa. PETN is similar, but with smaller total absorption. A broad visible ...

... ATOMIC EMISSION SPECTROSCOPY; ATOMIC ABSORPTION ... SPECTROSCOPY; MOLECULAR FLUORESCENCE SPECTROSCOPY; X- ...

... STRUCTURE, SPECTROSCOPY, INFRARED SPECTROSCOPY, ABSORPTION SPECTRA, ULTRAVIOLET SPECTROSCOPY, CHEMICAL ...

... MOLECULAR SPECTROSCOPY, LASER INDUCED FLUORESCENCE, MOLECULAR ... ABSORPTION, ATOMIC SPECTROSCOPY, DISSOCIATION ...

Results of experiments on the absorption of niobium in a hot, dense plasma are presented. These results represent a major step in the development of absorption techniques necessary for the quantitative characterization of hot, dense matter. A general discussion is presented of the requirements for performing quantitative analysis of ...

Topics discussed include X-ray diagnostics, fluctuation diagnostics and diffraction tomography, localized magnetic-field diagnostics, fluctuations and maser emission, ion diagnostics and visible spectroscopy, neutron and alpha-particle diagnostics, and ...

Twenty-six thick film inks from two vendors have been approved for hybrid microcircuit (HMC) production use. A data base of chemical information was established for all the inks to aid in future diagnostic and failure analysis activities. Efforts included both organic chemical analysis of printing vehicles and binders and inorganic chemical analysis of glass frits and ...

and 100 K. Although 5 conformers of cyclohexoxy are possible, it appears that all presently observed and UV absorption spectroscopy of the precursors or final products were used to monitor indirectly information about its structure and a convenient diagnostic for its monitoring. Recently, Zhang et al.15

The terahertz time-domain spectroscopy technique is used to test flour/talc powder mixture samples. It is found that the two samples have obvious absorption peaks and different refractive index. The results provided in this paper will help us to study the THz application to the field of food safety.

High sensitivity absorption spectroscopy is a powerful diagnostic technique for reactive glow discharges plasmas. Absolute column densities of many chemical radicals have been measured in both deposition and etching plasmas. Modern photodiode or charge-coupled device (CCD) detector arrays vastly increase the sensitivity of traditional ...

Spectroscopic diagnostics, using intensified high speed CCD camera, was applied to study the arc dynamics in low voltage circuit breakers, in vacuum and in air. Time-resolved emission spectroscopy of the vacuum arc plasma, generated during electrode separation, provided information about the interruption process. The investigations were focused on the ...

Broad band UV�visible absorption spectroscopy is widely used to measure the concentration of radicals in reactive plasmas. We extended the applicability of this technique to the VUV (115 nm to 200 nm), the spectral range in which the electronic transitions from the ground state to the Rydberg or pre-dissociated states of many closed-shell molecules are ...

A workshop entitled "Diagnostics, Imaging and Spectroscopy: Potential for ... were described that included confocal microscopy, magnetic resonance imaging, ...

A diagnostic technique for monitoring the concentration of NO using absorption of CO laser radiation

Zinc protoporphyrin is the predominant fluorescent porphyrin accumulating in erythocytes as a result of chronic lead absorption or iron-deficiency anemia. Although diagnostic concentrations or thresholds for it in erythocytes have been inferred, normal adult averages have not been established. We quantitatively assessed average zinc protoporphyrin values ...

This book presents the papers given at a conference on analytical and separations chemistry. Topics considered at the conference included inductively coupled plasma, mass spectrometry, biochemical analysis, infrared spectra, trace analysis, mixtures, chemical sensors, plasma diagnostics, liquid column chromatography, water pollution, gas chromatography, Fourier transform ...

... Title : The Polarized Absorption Spectroscopy as a Novel Method for Determining the Orientational Order of Poled Nonlinear Optical Polymer Films. ...

Upper atmosphere molecular oxygen concentrations measured by absorption spectroscopy, noting diurnal

vancements in Cavity Enhanced Laser Absorption Spectroscopy address all these concerns while offering exceptional sensitivity ...

... Accession Number : ADA408603. Title : High Resolution Infrared Absorption Spectroscopy of Molecular Dopants in Cryogenic Solid Parahydrogen. ...

... Accession Number : AD0730390. Title : Experiments in Atomic Absorption Spectroscopy with a Carbon Filament Atom Reservoir,. ...

... Accession Number : ADD325658. Title : ACOUSTICAL ABSORPTION SPECTROSCOPY OF LIQUIDS BETWEEN 0.15 AND 3000 MHZ: III. ...

By using emission spectroscopy method and absorption at 1392nm, partial water pressure at the exit of a square pipe-array jet-type singlet oxygen generator (SPJSOG) for chemical oxygen-iodine laser (COIL) was measured. The water vapor fraction was calculated from the partial water pressure in the diagnostic cell when we assumed the ...

A laser absorption spectroscopy (LAS) system has been developed at Lawrence Livermore National Laboratory (LLNL) for process control. LAS has proven itself to be an accurate and reliable method to monitor both density and composition. In this paper the important features and components of an industrial LAS diagnostic are described. ...

... Accession Number : AD0194211. Title : ULTRASONIC ABSORPTION AND MICROSCOPY AND SPECTROSCOPY. Corporate Author : ...

... Descriptors : (*VAPOR PRESSURE, RESONANCE ABSORPTION), (*COPPER, LINE SPECTRA), ABSORPTION SPECTRA, SPECTROSCOPY ...

... Accession Number : AD0683698. Title : STIMULATED RAMAN EMISSION AND ABSORPTION SPECTROSCOPY. INTENSITY ...

... PROGRESS IN APPLYING TUNABLE DIODE LASER ABSORPTION SPECTROSCOPY TO SCRAMJET ISOLATORS AND COMBUSTORS ...

... PHENYL RADICALS, ABSORPTION, ABSORPTION SPECTRA, AMPLITUDE ... SIGNALS, STARK EFFECT, TEMPERATURE, ULTRASONICS ...

... INDUCED FLUORESCENCE, *LASER APPLICATIONS, MATHEMATICAL MODELS, EMISSION, REPRINTS, LIGHT SCATTERING, ABSORPTION ...