1988
DOI: 10.1063/1.455434
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Pressure effects on kinetics and decay processes in krypton after selective photoexcitation

Abstract: Kinetics associated with the decay of the 5s[3/2]01 (3P1) excited state of krypton is investigated using selective excitation, in the density range 2.5×1018 to 375×1018 atoms cm−3 (pressure from 104 to 1.5×106 Pa). The vacuum ultraviolet (VUV) one-photon excitation around 123.6 nm is provided by monochromatized light from a laser-generated rare gas plasma. The basic experimental data are obtained through the time-resolved second continuum excimer fluorescence at 145 nm. When initial conditions give purely 3P1 … Show more

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Cited by 20 publications
(17 citation statements)
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“…Because of its high rate R~--k~-[Kr] > 5 ns-1 in the pressure range considered here (k~=7.8-10 -H cm 3 s -1 [3]), the vibrational relaxation is not included in the scheme. For the same reason collisional-induced predissociation of the 0 + (v' >>0) state was also rejected [8].…”
Section: Hv = 1~mentioning
confidence: 97%
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“…Because of its high rate R~--k~-[Kr] > 5 ns-1 in the pressure range considered here (k~=7.8-10 -H cm 3 s -1 [3]), the vibrational relaxation is not included in the scheme. For the same reason collisional-induced predissociation of the 0 + (v' >>0) state was also rejected [8].…”
Section: Hv = 1~mentioning
confidence: 97%
“…We believe that both the upward dissociation of Kr* (1,)v,>>0 and collisional-induced predissociation of Kr* (0u) v,>>0 populate the precursor states. Though a threshold value for the predissociation was estimated in [8] to be 2 c~ 124.7 nm, because of the large bandpass of the monochromator used (A)~ ~0.7 nm) the true position of )~c may be shifted to longer wavelengths.…”
Section: Mathematical Modelmentioning
confidence: 99%
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“…The physical processes leading to excimer fluorescence in rare gases in low density limit are very well known [3,4,12,13,14,15,16,17,18,19,20]. The potential curve of diatomic rare gas molecules in the ground state is repulsive except for a weak van der Waals attraction.…”
Section: Introductionmentioning
confidence: 99%