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1. Ultrafine Combustion Aerosol Generator
Thomas George Cleary, George William Mulholland, Lewis K. Ives, Robert A Fletcher, J. W. Gentry
We are able to produce a narrowly distributed combustion aerosol with a mean particle size of about 10 nm by operating a laminar diffusion burner with acetylene fuel in the nominal "presooting" condition. Number concentrations of approximately 106 p ...
2. AMS and Microprobe Analysis of Combusted Particles in Ice and Snow
S R. Biegalski, George A Klouda, R Weissenbok, Lloyd A. Currie, Robert A Fletcher
Ice cores and snow pits of the cryosphere contain particles that detail the history of past atmospheric air compositions. Some of these particles result from combustion processes and have undergone long-range transport to arrive in the Arctic. Rece ...
3. Analysis of Combustion Particles Contained in Environmental Ice and Snow Samples Using Sublimation in Conjunction with Accelerator Mass Spectrometry and Laser Microprobe Mass Analysis
S R. Biegalski, Lloyd A. Currie, Robert A Fletcher, George A Klouda, R Weissenbok
4. Analysis of Smoke Samples From Oil Well Fires in Kuwait. Report of Test (FR 3985)
George William Mulholland, Bruce A Benner Jr, Robert A Fletcher, Eric B Steel, Stephen A Wise, Willie E May, Daniel Madrzykowski, David J Evans
This report describes results from a preliminary series of measurements concerning the smoke production from the Kuwait oil well fires. Detailed chemical analysis of the smoke is being carried out for determination of the fraction of ambient aerosol ...
5. Application of Inkjet Printing Technology to Produce Test Materials of 1,3,5-Trinitro-1,3,5
Triazcyclohexane for Trace Explosive Analysis
Eric S Windsor, Marcela Najarro Najarro, Anna N. Bloom, Bruce A Benner Jr, Robert A Fletcher, John G Gillen, Richard Lareau, Inho Cho, Mike Boldmand
The feasibility of using piezoelectric drop-on-demand inkjet printing to prepare test materials for trace explosive analysis is demonstrated. Both pure high explosives and plastic-bonded putty explosives were formulated into inkjet printable solut ...
6. Automated Analysis of Organic Particles Using Cluster SIMS
John G Gillen, Cynthia J Zeissler, Christine M. Mahoney, Abigail P. Lindstrom, Robert A Fletcher, P Chi, Jennifer R Verkouteren, David S. Bright, R Lareau, M Boldman
Cluster primary ion bombardment combined with secondary ion imaging is used in an ion microscope secondary ion mass spectrometer for the spatially resolved analysis of organic particles on various surfaces. Compared to the use of monoatomic primary ...
7. Calibration of a Condensation Particle Counter Using a NIST Traceable Method
Robert A Fletcher, Michael R Winchester, George William Mulholland, R Lance King, D Klinedinst
8. Carbonization Rate of Soot Precursor Particles
R A Dobbins, G J Govatzidakis, W Lu, A F Schwartzman, Robert A Fletcher
9. Chapter 12: Analysis of Individual Collected Particles
Robert A Fletcher, John A Small, J H J Scott
This chapter describes microscopes and microprobes used for analysis of collected, individual particles. The instruments discussed are the light microscope, electron microscopes (scanning, environmental and transmission), electron microprobes, laser ...
10. Chapter 21 Calibration of Aerosol Instruments
Bean T. Chen, Robert A Fletcher, Yung-Sung Cheng
This chapter reviews calibration techniques relevant to aerosol measurement devices, such as sizing instruments, condensation nuclei counters, and mass monitors. The generation methods for test aerosols and important parameters in instrument calibra ...