Principles of the Diatomic Molecular Spectra calculation and Their Application in Plasma Diagnostics

journal article - other

English

The molecular spectra, mainly the spectra of diatomic molecules, are widely used in low temperature plasma diagnostics; the only exceptions are the determination of radiative species in the plasma for determination of rotational temperature (usually equal to the neutral gas temperature) and vibrational distribution of radiative states. In some cases, vibrational distribution can be approximated by the vibrational temperature. Many constants specific for the transitions are necessary for these estimations and calculations and the spectra with high resolution in order of 0,01 nm are required. A numerical simulation of spectra of diatomic molecules can solve some of these problems. Actually, there are some programs for numerical simulation of the spectra of diatomic molecules. The specific programs for one transition are used in many laboratories over the world. There is also one more universal program LifBase1, which includes the most frequent spectral transitions. The disadvantage of this program is that it works only under the MS-DOS operation system. Therefore we started to prepare a new universal program working under Windows as well as under UNIX platforms.

numerical simulation, diatomic spectra

KRČMA, F., ŠORMOVÁ, H.

2002

10. 9. 2002

AV ČR

0009-2770

Chemické listy

96

S

Czech Republic

S37

3