Physics
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aps..gecetp033i&link_type=abstract
American Physical Society, 53rd Annual Gaseous Electronics Conference October 24-27, 2000 Houston, Texas Meeting ID: GEC00, abst
Physics
Scientific paper
We present effects of interaction between condensable gas atoms and walls in plasma derived from spectroscopic investigation. Intensities of emission spectra from Hg atoms exponentially increased as temperature increased. Below 310 K, the activation energies of group A (370, 579 nm) and group B (404, 435 and 546 nm) were 0.45 eV and 0.67 eV, respectively. The activation energy of group B coincided with that of evaporation from mercury surface. Above 310 K, the activation energy of group B decreased to 0.34 eV, which is a half of the energy of evaporation from liquid mercury. This result suggests a structural change of adsorbed mercury atoms from multi-layer to monolayer. Time dependence of emission spectra induced by temperature perturbation with amplitude 1 K and period 800 s was investigated. Below 310 K, characteristics of Xe, Ar and Hg were correlated. However above 310 K, the correlation between them was changed; high harmonic modes were remarkably excited in both cases but second harmonic mode of Xenon spectrum disappeared. Spatial distribution of emission intensity from Hg showed 2x3 structure.
Asatani Syu-Ichiro
Imamura Nariaki
Obara Kozo
Sakaguchi Jyun
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