ICP Rotational Spectroscopic Temperature Determination Using N2 and N2+

1987 ◽  
Vol 41 (4) ◽  
pp. 658-660 ◽  
Author(s):  
C. J. Seliskar ◽  
D. C. Miller ◽  
P. A. Fleitz
Keyword(s):  
Computer Program ◽  
Rotational Structure ◽  
Positive System ◽  
Temperature Determination ◽  
Negative System

The rotational structure in the origin bands of the Second Positive System of N2 and the First Negative System of N2+ have been used to demonstrate that these bands can be employed to determine a consistent spectroscopic temperature in an ICP. The experimental spectra have been modeled by the use of a computer program which calculates these bands for both species.

Type-B red aurora; The O2+ first negative system and the N2 first positive system

1968 ◽  
Vol 16 (9) ◽  
pp. 1115-1130 ◽  
Author(s):  
Donald E. Shemansky ◽  
A.Vallance Jones
Keyword(s):  
Positive System ◽  
Type B ◽  
Negative System

High resolution optogalvanic spectrum of N2-rotational structure of (11, 7) band in the first positive system

Pramana ◽  
1994 ◽  
Vol 42 (3) ◽  
pp. 231-237 ◽  
Author(s):  
P R Sasikumar ◽  
S S Harilal ◽  
V P N Nampoori ◽  
C P G Vallabhan
Keyword(s):  
High Resolution ◽  
Rotational Structure ◽  
Positive System

scholarly journals Quantum analysis of the rotational structure of the first positive bands of nitrogen (N 2 )

1932 ◽  
Vol 136 (829) ◽  
pp. 114-144 ◽  
Keyword(s):  
Electronic Configuration ◽  
Selective Excitation ◽  
Nitrogen Molecule ◽  
Rotational Structure ◽  
Positive System ◽  
Initial State ◽  
Final State ◽  
Active Nitrogen ◽  
Quantum Analysis ◽  
Vibrational Levels

The greenish-yellow afterglow of active nitrogen was first described, by Lewis. Two decades have passed since Fowler and Strutt showed that this afterglow was due to a selective excitation of a few green, yellow and red bands belonging to the first positive system of the nitrogen molecule (N 2 ). Recent work on active nitrogen indicates that the selective excitation is due to metastable nitrogen atoms giving up their energy to metastable nitrogen molecules in state A, the final state of the first positive bands, thus leading to the selective excitation of certain specific vibrational levels in state B, the initial state of the first positive bands. The molecule then returns to state A, at the same time emitting the bands which constitute the afterglow. From the rotational analysis of the second positive nitrogen bands by Lindau, and Hulthèn and Johansson, it is known that state B corresponds to a 3 II state, the second positive bands having their final state in common with the initial state of the first positive bands. No definite information has been found concerning the electronic configuration of the nitrogen molecule which gives rise to state A. This can be obtained by making a detailed analysis of the rotational structure of the first positive nitrogen bands.

Ein Verfahren zur Computer-Simulation der Rotationsstruktur von Raman-Banden

1972 ◽  
Vol 27 (1) ◽  
pp. 65-67 ◽  
Author(s):  
K. Altmann ◽  
G. Strey
Keyword(s):  
Computer Simulation ◽  
Computer Program ◽  
Raman Spectra ◽  
Rotational Structure

Abstract A computer program for simulation of the rotational structure of Raman bands is described. The program is used for an analysis of the Raman spectra of gaseous chlorine.

A general computer program for the extended plate overlap algorithm

1978 ◽  
Vol 48 ◽  
pp. 287-293 ◽  
Author(s):  
Chr. de Vegt ◽  
E. Ebner ◽  
K. von der Heide
Keyword(s):  
Computer Program ◽  
Simultaneous Determination ◽  
General Computer Program ◽  
General Computer

In contrast to the adjustment of single plates a block adjustment is a simultaneous determination of all unknowns associated with many overlapping plates (star positions and plate constants etc. ) by one large adjustment. This plate overlap technique was introduced by Eichhorn and reviewed by Googe et. al. The author now has developed a set of computer programmes which allows the adjustment of any set of contemporaneous overlapping plates. There is in principle no limit for the number of plates, the number of stars, the number of individual plate constants for each plate, and for the overlapping factor.

Structures and crystallization of vacuum-deposited amorphous Se and Sb films

1990 ◽  
Vol 48 (4) ◽  
pp. 140-141
Author(s):  
Makoto Shiojiri ◽  
Toshiyuki Isshiki ◽  
Tetsuya Fudaba ◽  
Yoshihiro Hirota
Keyword(s):  
Monte Carlo ◽  
Electron Microscope ◽  
Monte Carlo Method ◽  
Computer Program ◽  
Radial Distribution ◽  
Film Formation ◽  
Amorphous State ◽  
Two Dimensional ◽  
Amorphous Films ◽  
Binding Condition

In hexagonal Se crystal each atom is covalently bound to two others to form an endless spiral chain, and in Sb crystal each atom to three others to form an extended puckered sheet. Such chains and sheets may be regarded as one- and two- dimensional molecules, respectively. In this paper we investigate the structures in amorphous state of these elements and the crystallization.HRTEM and ED images of vacuum-deposited amorphous Se and Sb films were taken with a JEM-200CX electron microscope (Cs=1.2 mm). The structure models of amorphous films were constructed on a computer by Monte Carlo method. Generated atoms were subsequently deposited on a space of 2 nm×2 nm as they fulfiled the binding condition, to form a film 5 nm thick (Fig. 1a-1c). An improvement on a previous computer program has been made as to realize the actual film formation. Radial distribution fuction (RDF) curves, ED intensities and HRTEM images for the constructed structure models were calculated, and compared with the observed ones.

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