Publications

10 Results
Skip to search filters

Enhanced Micellar Catalysis LDRD

Betty, Rita B.; Glen, Crystal C.; Alam, Todd M.; Taggart, Gretchen S.; Tucker, Mark D.; Rivera, Danielle R.; Kinnan, Mark K.

The primary goals of the Enhanced Micellar Catalysis project were to gain an understanding of the micellar environment of DF-200, or similar liquid CBW surfactant-based decontaminants, as well as characterize the aerosolized DF-200 droplet distribution and droplet chemistry under baseline ITW rotary atomization conditions. Micellar characterization of limited surfactant solutions was performed externally through the collection and measurement of Small Angle X-Ray Scattering (SAXS) images and Cryo-Transmission Electron Microscopy (cryo-TEM) images. Micellar characterization was performed externally at the University of Minnesotas Characterization Facility Center, and at the Argonne National Laboratory Advanced Photon Source facility. A micellar diffusion study was conducted internally at Sandia to measure diffusion constants of surfactants over a concentration range, to estimate the effective micelle diameter, to determine the impact of individual components to the micellar environment in solution, and the impact of combined components to surfactant phase behavior. Aerosolized DF-200 sprays were characterized for particle size and distribution and limited chemical composition. Evaporation rates of aerosolized DF-200 sprays were estimated under a set of baseline ITW nozzle test system parameters.

More Details

A short-standoff bistatic lidar system for aerosol cloud backscatter cross section measurement

CLEO: Applications and Technology, CLEO_AT 2012

Schmitt, Randal L.; Glen, Crystal C.; Sickafoose, Shane S.; Shagam, Richard N.; Santarpia, Joshua S.; Brockmann, John E.; Reichardt, Thomas A.; Pack, Michael P.; Chavez, Victor; Boney, Craig M.; Servantes, B.L.

A short-standoff bistatic lidar system coupled with an aerosol chamber has been built to measure aerosol optical backscatter and laser induced fluorescence cross-sections. Preliminary results show good sensitivity across all channels with high signal-to-noise ratio. © OSA 2012.

More Details
10 Results
10 Results