TY - JOUR

T1 - Spectroscopic Determination of the Relative Particle Densities of Н2, HD, and D2 Molecules in Nonequilibrium Hydrogen–Deuterium Plasma: II. Experimental Verification

AU - Zhukov, A. S.

AU - Lavrov, B. P.

PY - 2016

Y1 - 2016

N2 - The relative intensities of the Balmer series lines of hydrogen and deuterium atoms and the Q-branch lines in the Fulcher α-band system of the H2, HD, and D2 molecules were measured. These lines were emitted by nonequilibrium plasma surrounded by the cylindrical channel of an additional molybdenum electrode located between the cathode and anode of glow (in the deuterium with a minor hydrogen impurity) and arc (in a mixture of D2, H2, and Ne in comparable quantities) discharges at pressures of 6–8 Torr and current densities of 0.4 and 8.5–17 A/cm2, respectively. The measured intensity ratios and gas temperature were used for the estimation of the relative particle densities of the H2, HD, and D2 molecules with the aid of the simple models of atomic excitation (models 1a and 1b for the high and low degrees of dissociation, respectively) and the rovibronic levels of isotopic molecules (model 2). The results obtained by means of models 1a and 2 were in a significant contradiction, whereas the data obtained with t

AB - The relative intensities of the Balmer series lines of hydrogen and deuterium atoms and the Q-branch lines in the Fulcher α-band system of the H2, HD, and D2 molecules were measured. These lines were emitted by nonequilibrium plasma surrounded by the cylindrical channel of an additional molybdenum electrode located between the cathode and anode of glow (in the deuterium with a minor hydrogen impurity) and arc (in a mixture of D2, H2, and Ne in comparable quantities) discharges at pressures of 6–8 Torr and current densities of 0.4 and 8.5–17 A/cm2, respectively. The measured intensity ratios and gas temperature were used for the estimation of the relative particle densities of the H2, HD, and D2 molecules with the aid of the simple models of atomic excitation (models 1a and 1b for the high and low degrees of dissociation, respectively) and the rovibronic levels of isotopic molecules (model 2). The results obtained by means of models 1a and 2 were in a significant contradiction, whereas the data obtained with t

KW - hydrogen

KW - deuterium

KW - isotopologues

KW - dissociation

KW - association

KW - excitation

KW - rovibronic spectra

KW - nonequilibrium plasma

U2 - 10.1134/S1990793116010231

DO - 10.1134/S1990793116010231

M3 - Article

VL - 10

SP - 5

EP - 14

JO - Russian Journal of Physical Chemistry B

JF - Russian Journal of Physical Chemistry B

SN - 1990-7931

IS - 1

ER -