Coaxial Laser Fluorescence System by Two-Photon Excitation for Atomic Hydrogen Detection in High-Temperature Plasmas
- 1 May 1990
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 29 (5A), L826-828
- https://doi.org/10.1143/jjap.29.l826
Abstract
A coaxial laser fluorescence system using two-photon excitation of hydrogen atoms from their ground states to 3s, 3d states and H α fluorescence observation was proven to have sufficient performance for local density measurements of hydrogen atoms in the periphery of high-temperature plasmas. The detection limit estimated against the H α background radiation was shown to be adequate for the purpose.Keywords
This publication has 8 references indexed in Scilit:
- Application of Laser Fluorescence Spectroscopy by Two-Photon Excitation into Atomic Hydrogen Density Measurement in Reactive PlasmasJapanese Journal of Applied Physics, 1990
- Laser fluorescence spectroscopy by two-photon excitation for detection of hydrogen atoms in a periphery region of high temperature plasmas.Kakuyūgō kenkyū, 1989
- Studies of Particle Behaviour in Heliotron E by Means of Balmer-Alpha Laser Fluorescence SpectroscopyJournal of the Physics Society Japan, 1988
- Studies of Hydrogen Atoms in High-Temperature Plasmas by Laser Fluorescence Spectroscopy at Balmer SeriesKakuyūgō kenkyū, 1987
- Measurements of density, surface recombination coefficient, and diffusion coefficient of hydrogen atoms by Lα laser fluorescence spectroscopyReview of Scientific Instruments, 1985
- Determination of Atomic Hydrogen Density by Lyman-Alpha Laser Fluorescence SpectroscopyJapanese Journal of Applied Physics, 1985
- Measurement of atomic hydrogen densities and velocities by laser-induced fluorescence at LαJournal of Nuclear Materials, 1982
- Two-photon excitation of thelevel in H and D atomsPhysical Review A, 1981