Measurement of excited-state densities during high-current operation of a hydrogen thyratron using laser-induced fluorescence
- 30 June 1986
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 48 (26) , 1773-1775
- https://doi.org/10.1063/1.96781
Abstract
The population of the n=2 level of atomic hydrogen and the collisional relaxation rates of the n=3 and n=4 levels during the conductive phase in the positive column of a high-current ( J∼100–400 A/cm2) pulse in a hydrogen thyratron were measured. These results demonstrate laser-induced fluorescence to be a useful in situ diagnostic for high-current switch plasmas.Keywords
This publication has 10 references indexed in Scilit:
- Determination of electric field and electron temperature in the positive column of a high-power hydrogen thyratron from nonintrusive measurementsApplied Physics Letters, 1986
- Stepwise ionization in a non-equilibrium, steady-state hydrogen plasmaJournal of Quantitative Spectroscopy and Radiative Transfer, 1984
- A fundamental theory of high power thyratrons for high power laser and beam applications III: the production of radiationLaser and Particle Beams, 1984
- A fundamental theory of high power thyratrons II: The production of atomic hydrogen and positive ionsLaser and Particle Beams, 1983
- A fundamental theory of high power thyratrons I: The electron temperatureLaser and Particle Beams, 1983
- A comparison between theory and laser spectroscopic measurements for a hydrogen plasma under high-intensity resonant Balmer line irradiationJournal of Physics B: Atomic and Molecular Physics, 1980
- Kinetics of population inversion in a copper-vapor laser investigated by a modified hook methodOptics Letters, 1980
- Direct laser-based measurements of the collisional depopulation rate of the n=2 level of hydrogen in a plasmaJournal of Physics B: Atomic and Molecular Physics, 1978
- Dye laser induced fluorescence of plasmas and its application to measurement of lower state decay ratesJournal of Physics B: Atomic and Molecular Physics, 1974
- Approximations for Collisional and Radiative Transition Rates in Atomic HydrogenThe Astrophysical Journal, 1972