Excitation of Nitric Oxide and Atomic Oxygen in Afterglow Sources
Title | Excitation of Nitric Oxide and Atomic Oxygen in Afterglow Sources PDF eBook |
Author | William Joseph Schade |
Publisher | |
Pages | 146 |
Release | 1961 |
Genre | |
ISBN |
The afterglow emission intensities of the nitrogen first positive bands, the nitric oxide beta, gamma, and delta bands, and the atomic oxygen green line were examined under conditions in which the constituents of the afterglow source were varied chemically. The nature of the particles that interact to produce excited nitric oxide molecules and excited oxygen atoms in afterglow sources were determined. The results were applied to the excitation of atomic oxygen in the upper atmosphere of the earth. In the past, the excitation of atomic oxygen in the upper atmosphere has been explained by the Chapman process in which three oxygen atoms collided to form molecular oxygen and excited atomic oxygen in the 1S state. The laboratory experiments presented here do not support the Chapman process; under favorable conditions for the Chapman process, the intensity of the atomic oxygen green line approached zero. The excitation process that gives rise to the green line in laboratory afterflows probably is not operative in the upper atomophere because of the expected low density of atomic nitrogen at altitudes where emission of OI 5577 originates. (Author).
U.S. Government Research Reports
Title | U.S. Government Research Reports PDF eBook |
Author | |
Publisher | |
Pages | 154 |
Release | 1962 |
Genre | Science |
ISBN |
Keywords Index to U.S. Government Technical Reports
Title | Keywords Index to U.S. Government Technical Reports PDF eBook |
Author | United States. Department of Commerce. Office of Technical Services |
Publisher | |
Pages | 990 |
Release | 1962 |
Genre | Government publications |
ISBN |
O-atom Yields from Microwave Discharges in N2O/Ar Mixtures
Title | O-atom Yields from Microwave Discharges in N2O/Ar Mixtures PDF eBook |
Author | L. G. Piper |
Publisher | |
Pages | 54 |
Release | 1983 |
Genre | Microwaves |
ISBN |
We have studied the products of Ar/N20 microwave discharges to determine their fitness as sources of atomic oxygen in discharge-flow reactors. For N20 feed rates below 10-20 micromol s−1, the discharge converts about 75 percent of the N20 to atomic oxygen, and in addition, produces small quantities of atomic nitrogen, generally less than 10 percent of the 0-atom product. At higher N20 feed rates the 0-atom production efficiency decreases, and some nitric oxide accompanies the 0-atoms out of the discharge.
Technical Publications Announcements with Indexes
Title | Technical Publications Announcements with Indexes PDF eBook |
Author | United States. National Aeronautics and Space Administration |
Publisher | |
Pages | 1318 |
Release | 1962 |
Genre | Aeronautics |
ISBN |
Keywords Index to U.S. Government Technical Reports (permuted Title Index).
Title | Keywords Index to U.S. Government Technical Reports (permuted Title Index). PDF eBook |
Author | United States. Department of Commerce. Office of Technical Services |
Publisher | |
Pages | 522 |
Release | 1962 |
Genre | Government publications |
ISBN |
Space Programs Summary
Title | Space Programs Summary PDF eBook |
Author | Jet Propulsion Laboratory (U.S.) |
Publisher | |
Pages | 1044 |
Release | 1962 |
Genre | Aerospace industries |
ISBN |