TY - GEN
T1 - Optical spectroscopy of fireballs from metallized reactive materials
AU - Glumac, Nick
AU - Krier, Herman
AU - Lynch, Patrick
AU - Peuker, Jennifer Mott
PY - 2010
Y1 - 2010
N2 - Common problems associated with optical spectroscopic measurements in metallized fireballs are discussed. These problems include optical depth, spatial averaging, and unknown emissivity variation with wavelength and temperature. In particular, the interpretation of AlO emission intensity as a measure of Al reactivity is challenged through a controlled experiment. Alternatives to external optical probes are presented including internal fiber optic probes for emission spectroscopy and broadband dye laser absorption for quantitative spatially and temporally resolved intermediate quantification. Finally, emission results from the Δv = -2 band sequence of AlO B-X are presented, and this sequence is proposed as a possible means to sensitively determine fireball temperatures via emission spectroscopy.
AB - Common problems associated with optical spectroscopic measurements in metallized fireballs are discussed. These problems include optical depth, spatial averaging, and unknown emissivity variation with wavelength and temperature. In particular, the interpretation of AlO emission intensity as a measure of Al reactivity is challenged through a controlled experiment. Alternatives to external optical probes are presented including internal fiber optic probes for emission spectroscopy and broadband dye laser absorption for quantitative spatially and temporally resolved intermediate quantification. Finally, emission results from the Δv = -2 band sequence of AlO B-X are presented, and this sequence is proposed as a possible means to sensitively determine fireball temperatures via emission spectroscopy.
UR - http://www.scopus.com/inward/record.url?scp=78649852138&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78649852138&partnerID=8YFLogxK
U2 - 10.2514/6.2010-695
DO - 10.2514/6.2010-695
M3 - Conference contribution
AN - SCOPUS:78649852138
SN - 9781600867392
T3 - 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
BT - 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
PB - American Institute of Aeronautics and Astronautics Inc.
ER -