TY - JOUR
T1 - Spatial and spectral structure of explosively generated plasmas in tubes
AU - Poirier, N.
AU - Amondson, D.
AU - Asay, B. W.
AU - Glumac, N.
N1 - The authors would like to acknowledge several extremely helpful discussions with Doug Tasker and Von Whitley at Los Alamos National Labs, and Samuel Emery, Jim Lightstone, and Demitrios Stamatis at the Naval Surface Warfare Center at Indian Head.
PY - 2021/11
Y1 - 2021/11
N2 - Explosively generated plasmas (EGPs) in straight and conical sections are examined with high-speed imaging and spectroscopy. Fine axial and radial structure is resolved in these EGP systems, suggesting a complex distribution of luminosity that varies spatially and temporally. Spectroscopic analysis identifies the main molecular emitters as OH, CN, and NH, with the majority of the emission in a broad continuum that fits well to a gray body distribution in the 7000–11,000 K range. Emission spectra from CN are fit in the optically thin limit and provide similar temperature.
AB - Explosively generated plasmas (EGPs) in straight and conical sections are examined with high-speed imaging and spectroscopy. Fine axial and radial structure is resolved in these EGP systems, suggesting a complex distribution of luminosity that varies spatially and temporally. Spectroscopic analysis identifies the main molecular emitters as OH, CN, and NH, with the majority of the emission in a broad continuum that fits well to a gray body distribution in the 7000–11,000 K range. Emission spectra from CN are fit in the optically thin limit and provide similar temperature.
KW - Air shock
KW - Emission spectroscopy
KW - Explosively generated plasma
KW - Temperature
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U2 - 10.1007/s00193-021-01036-4
DO - 10.1007/s00193-021-01036-4
M3 - Article
AN - SCOPUS:85118472459
SN - 0938-1287
VL - 31
SP - 877
EP - 886
JO - Shock Waves
JF - Shock Waves
IS - 8
ER -