Dissociation and excitation coefficients of nitrogen molecules and nitrogen monoxide generation
- Department of Electronic and Biological Physics, Kwangwoon University 447-1 Wolgye-Dong, Nowon-Gu, Seoul 137-701 (Korea, Republic of)
The excitation coefficient α{sub N2} is calculated for the excited metastable level of N{sub 2}(A{sub 3}Σ{sub u}{sup +}) in nitrogen molecules. In addition, the dissociation coefficient of nitrogen molecules is investigated by making use of the Boltzmann distribution of the electrons in atmospheric plasmas. The excitation and electron-impact dissociation coefficients of nitrogen molecules are analytically expressed in terms of the electron temperature T{sub e} for evaluations of the reactive oxygen and nitrogen species in atmospheric plasmas. As an application example of these coefficients, the nitrogen monoxide generation through a microwave torch is carried out for a development of medical tool. The nitrogen monoxide concentration from a microwave plasma-torch can be easily controlled by the nitrogen flow rate, mole fraction of the oxygen gas, and the microwave power. A simple analytic expression of the nitrogen monoxide concentration is obtained in terms of the oxygen molecular density and gas flow rate. The experimental data agree remarkably well with the theoretical results from the analytical expression. A microwave nitrogen-torch can easily provide an appropriate nitrogen monoxide concentration for the wound healings.
- OSTI ID:
- 22220684
- Journal Information:
- Physics of Plasmas, Vol. 20, Issue 8; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
Similar Records
SEMI-ANNUAL PROGRESS REPORT
Assessment of excitation mechanisms and temporal dependencies of infrared radiation from vibrationally excited carbon monoxide and ozone in EXCEDE experiments. Technical report, January 1983-November 1984