Research output: Contribution to journal › Article › peer-review
Population of 2p55s levels of neon in He-Ne plasma : I. the evolution of mechanisms in the discharge and the afterglow. / Ivanov, V. A.; Petrovskaya, A. S.; Skoblo, Yu E.
In: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Vol. 114, No. 5, 05.2013, p. 688-695.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Population of 2p55s levels of neon in He-Ne plasma
T2 - I. the evolution of mechanisms in the discharge and the afterglow
AU - Ivanov, V. A.
AU - Petrovskaya, A. S.
AU - Skoblo, Yu E.
PY - 2013/5
Y1 - 2013/5
N2 - The spectroscopic study of population processes of neon 2p 55s states was carried out in helium afterglow with small admixture of neon at PHe = 38.1 torr, [He]/[Ne]=10-5 with pulsed discharge afterglow in helium with small admixture of neon (pressure equal to 38.1 mm Hg;). It is established that the main mechanism of population of 3s 2 level (in Paschen's notation) in the discharge and the initial after-glow is the excitation transfer from metastable atoms of He(21 S 0). The other three levels - 3s 3, 3s 4, and 3s 5 - corresponding to 2p 55s configuration are populated in the afterglow as a result of the dissociative recombination HeNe+ of ions with electrons. The same process is also the main channel of population of 3s 2 level in the late afterglow phase, when the concentration of He(21 S 0) atoms is small. The hypothesis of recombination mechanism is confirmed by observation of the response of line intensities to pulsed electron heating. The partial coefficients of dissociative recombination into 2p 55s states are estimated.
AB - The spectroscopic study of population processes of neon 2p 55s states was carried out in helium afterglow with small admixture of neon at PHe = 38.1 torr, [He]/[Ne]=10-5 with pulsed discharge afterglow in helium with small admixture of neon (pressure equal to 38.1 mm Hg;). It is established that the main mechanism of population of 3s 2 level (in Paschen's notation) in the discharge and the initial after-glow is the excitation transfer from metastable atoms of He(21 S 0). The other three levels - 3s 3, 3s 4, and 3s 5 - corresponding to 2p 55s configuration are populated in the afterglow as a result of the dissociative recombination HeNe+ of ions with electrons. The same process is also the main channel of population of 3s 2 level in the late afterglow phase, when the concentration of He(21 S 0) atoms is small. The hypothesis of recombination mechanism is confirmed by observation of the response of line intensities to pulsed electron heating. The partial coefficients of dissociative recombination into 2p 55s states are estimated.
UR - http://www.scopus.com/inward/record.url?scp=84878474929&partnerID=8YFLogxK
U2 - 10.1134/S0030400X13040097
DO - 10.1134/S0030400X13040097
M3 - Article
VL - 114
SP - 688
EP - 695
JO - OPTICS AND SPECTROSCOPY
JF - OPTICS AND SPECTROSCOPY
SN - 0030-400X
IS - 5
ER -
ID: 7411380