TY - JOUR
T1 - Temporally resolved electron density of a repetitive, nanosecond pulsed microdischarge
AU - Stephens, J.
AU - Fierro, A.
AU - Dickens, J.
AU - Neuber, A.
N1 - Publisher Copyright:
© 2014 IOP Publishing Ltd.
PY - 2014/11/19
Y1 - 2014/11/19
N2 - Using high speed spectroscopic diagnostics, temporally resolved optical emission spectroscopy is performed on a nanosecond, repetitively pulsed microdischarge. The microdischarge operates in an argon-hydrogen gas mixture (99%/1%) to provide a Lyman-α vacuum ultraviolet emission. Based on the Stark broadening of the 486.1 nm, Balmer-β hydrogen transition, the temporally resolved electron density was determined. Experimental electron density data are compared with the results of a 0D rate equation model. Peak electron density is estimated to be 5.6 • 1015cm-3, corresponding to a ∼0.25% degree of ionization. Using the approximate experimental ionization rate, the electron temperature is estimated to be ∼3.5 eV.
AB - Using high speed spectroscopic diagnostics, temporally resolved optical emission spectroscopy is performed on a nanosecond, repetitively pulsed microdischarge. The microdischarge operates in an argon-hydrogen gas mixture (99%/1%) to provide a Lyman-α vacuum ultraviolet emission. Based on the Stark broadening of the 486.1 nm, Balmer-β hydrogen transition, the temporally resolved electron density was determined. Experimental electron density data are compared with the results of a 0D rate equation model. Peak electron density is estimated to be 5.6 • 1015cm-3, corresponding to a ∼0.25% degree of ionization. Using the approximate experimental ionization rate, the electron temperature is estimated to be ∼3.5 eV.
KW - microdischarge
KW - pulsed discharge
KW - stark broadening
UR - http://www.scopus.com/inward/record.url?scp=84908537550&partnerID=8YFLogxK
U2 - 10.1088/0022-3727/47/46/465205
DO - 10.1088/0022-3727/47/46/465205
M3 - Article
AN - SCOPUS:84908537550
VL - 47
JO - Journal of Physics D: Applied Physics
JF - Journal of Physics D: Applied Physics
SN - 0022-3727
IS - 46
M1 - 465205
ER -