NDLI: Determination of the spatial characteristics of an RF electrodeless discharge by the method of emission tomography

Content Provider	Springer Nature Link
Author	Denisova, N. V. Revalde, G. Skudra, A.
Copyright Year	2006
Abstract	The spatial distribution of the density of mercury atoms in the 7$^{3}$ S state in a spherical RF electrode-less gas-discharge lamp is reconstructed by the method of emission tomography. The local values of the corresponding emission coefficients, which are proportional to the density of mercury atoms in the 7$^{3}$ S state, are determined from integral (over the plasma volume) measurements of the lamp radiation at a wavelength of 546.1 nm with the help of an algorithm based on the maximum entropy method. The results obtained show that, for all of the operating modes under study, the profile of the density of mercury atoms in the 7$^{3}$ S state has a minimum in the center of the lamp and a maximum near its wall. At a generator current of 100 mA and cold-spot temperature of 41°C, the density of mercury atoms in the 7$^{3}$ S state is observed to drop substantially both in the center of the lamp and near its wall, the density in the center being reduced to almost zero. An explanation of this phenomenon is proposed.
Starting Page	960
Ending Page	967
Page Count	8
File Format	PDF
ISSN	1063780X
Journal	Plasma Physics Reports
Volume Number	32
Issue Number	11
e-ISSN	15626938
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2006-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	High-frequency and RF discharges Discharges for spectral sources Atoms, Molecules, Clusters and Plasmas
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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