NDLI: Lif and emission studies of copper and nitrogen

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Lif and emission studies of copper and nitrogen

Content Provider	NASA Technical Reports Server (NTRS)
Author	Akundi, Murty A.
Copyright Year	1990
Description	A technique is developed to determine the rotational temperature of nitrogen molecular ion, N2(+), from the emission spectra of B-X transition, when P and R branches are not resolved. Its validity is tested on simulated spectra of the 0-1 band of N2(+) produced under low resolution. The method is applied to experimental spectra of N2(+) taken in the shock layer of a blunt body at distances of 1.91, 2.54, and 3.18 cm from the body. The laser induced fluorescence (LIF) spectra of copper atoms is analyzed to obtain the free stream velocities and temperatures. The only broadening mechanism considered is Doppler broadening. The temperatures are obtained by manual curve fitting, and the results are compared with least square fits. The agreement on the average is within 10 percent.
File Size	495273
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19910017775
Archival Resource Key	ark:/13960/t2f81870z
Language	English
Publisher Date	1990-12-01
Access Restriction	Open
Subject Keyword	Metallic Materials Laser Induced Fluorescence Molecular Ions Doppler Effect Molecular Rotation Shock Layers Temperature Measurement Nitrogen Ions Emission Spectra Blunt Bodies Free Flow Copper Ion Emission Curve Fitting Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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