Simultaneous Nitric Oxide/Atomic Oxygen Laser-Induced Fluorescence in an Arcjet Facility

2016 ◽  
Vol 30 (4) ◽  
pp. 912-918 ◽  
Author(s):  
Craig T. Johansen ◽  
Daniel A. Lincoln ◽  
Brett F. Bathel ◽  
Jennifer A. Inman ◽  
Paul M. Danehy
1986 ◽  
Vol 39 (2) ◽  
pp. 91-95 ◽  
Author(s):  
H. F. D�bele ◽  
M. H�rl ◽  
M. R�wekamp ◽  
B. Reimann

1998 ◽  
Vol 66 (4) ◽  
pp. 503-510 ◽  
Author(s):  
M. Tamura ◽  
J. Luque ◽  
J.E. Harrington ◽  
P.A. Berg ◽  
G.P. Smith ◽  
...  

2020 ◽  
Vol 13 (5) ◽  
pp. 2425-2439 ◽  
Author(s):  
Andrew W. Rollins ◽  
Pamela S. Rickly ◽  
Ru-Shan Gao ◽  
Thomas B. Ryerson ◽  
Steven S. Brown ◽  
...  

Abstract. We describe a newly developed single-photon laser-induced fluorescence sensor for measurements of nitric oxide (NO) in the atmosphere. Rapid tuning of a narrow-band laser on and off of a rotationally resolved NO spectral feature near 215 nm and detection of the red-shifted fluorescence provides for interference-free direct measurements of NO with a detection limit of 1 part per trillion by volume (pptv) for 1 s of integration, or 0.3 pptv for 10 s of integration. Uncertainty in the sensitivity of the instrument is typically ±6–9 %, with no known interferences. Uncertainty in the zero of the detector is shown to be <0.2 pptv. The instrument was deployed on the NASA DC-8 aircraft during the NASA/NOAA FIREX-AQ experiment (Fire Influence on Regional to Global Environments Experiment – Air Quality) during July–September 2019 and provided more than 140 h of NO measurements over 22 flights, demonstrating the ability of this instrument to operate routinely and autonomously. Comparisons with a seasoned chemiluminescence sensor during FIREX-AQ in a variety of chemical environments provides validation and confidence in the accuracy of this technique.


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