Absorption and Dispersion of Microwaves in Flames
- 15 October 1959
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 116 (2), 244-249
- https://doi.org/10.1103/physrev.116.244
Abstract
The dependence of the high-frequency electric conductivity and the optical constants of a weakly ionized gas on the microwave frequency, the electron-molecule collision frequency, the electron concentration, and an external magnetic field are discussed. Measurements of the electric conductivity between 23.10 and 92.96 kMc/sec indicate that the effective electron-molecule collision frequency in an acetylene-air flame is independent of the electron velocity within the limits of error. Cyclotron resonance of free electrons has been found in low-pressure flames at 24 kMc/sec. This effect can be used to determine both the concentration of free electrons and the electron collision frequency.This publication has 11 references indexed in Scilit:
- Cyclotron Resonance: Method for Determining Collision Cross Sections for Low-Energy ElectronsPhysical Review B, 1957
- Optical Cross Sections from Intensity-Density Measurements*Journal of the Optical Society of America, 1957
- Microwave absorption. The use of microwaves in the study of ionic and chemical equilibria at high temperaturesDiscussions of the Faraday Society, 1955
- A Microwave Investigation of the Ionization of Hydrogen-Oxygen and Acetylene-Oxygen FlamesThe Journal of Chemical Physics, 1954
- One-to-Two Millimeter Wave Spectroscopy. IV. Experimental Methods and Results for OCS, CF, andOPhysical Review B, 1954
- Théorie magnéto-ionique des gaz faiblement ionisés en présence d'un champ électrique oscillant et d'un champ magnétique constantJournal de Physique et le Radium, 1953
- A General Formula for the Conductivity of a Gas containing Free ElectronsProceedings of the Physical Society. Section B, 1951
- Studies on the ionization produced by metallic salts in flames I. The determination of the collision frequency of electrons in coal-gas/air flamesProceedings of the Royal Society of London. Series A - Mathematical and Physical Sciences, 1950
- Conduction and Dispersion of Ionized Gases at High FrequenciesPhysical Review B, 1946
- On the Shape of Collision-Broadened LinesReviews of Modern Physics, 1945