TY - JOUR
T1 - Vacuum ultraviolet emissions from a cylindrical dielectric barrier discharge in neon and neon-hydrogen mixtures
AU - Masoud, N.
AU - Martus, K.
AU - Becker, K.
N1 - Funding Information:
This work was supported by the US National Science Foundation (NSF). One of us (K.M.) wishes to thank the William Paterson University Sabbatical Leave program for the opportunity to undertake this project. We would like to thank Prof. M. Laroussi and Dr. P. Kurunczi for many helpful discussions.
PY - 2004/4/15
Y1 - 2004/4/15
N2 - The vacuum ultraviolet (VUV) emissions from a cylindrical dielectric barrier discharge (C-DBD) excited by radio frequency (rf) power at 13.56 MHz in both pure Ne and in a mixture of Ne and H2 were analyzed. Measurements of the relative emission intensity of the Ne resonance lines and the Ne2* excimer continua in pure neon were studied as a function of pressure, rf power, and gas flow rate. In Ne-H2 mixtures, we studied the emission of the H Lyman-α line as a function of H2 concentration, pressure, gas flow rate, and rf power. The observed dependence of the VUV emissions on the gas pressure, net rf power, gas flow rate and, in the case of the spectra of the Ne-H2 plasma, the H 2 concentration is explained on the basis of a detailed microscopic analysis of the excimer formation and destruction processes and the competition between the vibrational relaxation processes, quenching processes, and the radiative decay of two excimer states involved.
AB - The vacuum ultraviolet (VUV) emissions from a cylindrical dielectric barrier discharge (C-DBD) excited by radio frequency (rf) power at 13.56 MHz in both pure Ne and in a mixture of Ne and H2 were analyzed. Measurements of the relative emission intensity of the Ne resonance lines and the Ne2* excimer continua in pure neon were studied as a function of pressure, rf power, and gas flow rate. In Ne-H2 mixtures, we studied the emission of the H Lyman-α line as a function of H2 concentration, pressure, gas flow rate, and rf power. The observed dependence of the VUV emissions on the gas pressure, net rf power, gas flow rate and, in the case of the spectra of the Ne-H2 plasma, the H 2 concentration is explained on the basis of a detailed microscopic analysis of the excimer formation and destruction processes and the competition between the vibrational relaxation processes, quenching processes, and the radiative decay of two excimer states involved.
KW - Discharge plasma
KW - Excimer emission
KW - Hydrogen
KW - Lyman-α line
KW - Neon
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U2 - 10.1016/j.ijms.2004.02.007
DO - 10.1016/j.ijms.2004.02.007
M3 - Article
AN - SCOPUS:2142670703
SN - 1387-3806
VL - 233
SP - 395
EP - 403
JO - International Journal of Mass Spectrometry
JF - International Journal of Mass Spectrometry
IS - 1-3
ER -