Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
EDX spectra of a field of lead di-bromide exhaust particles. A field of exhaust particles from the aircraft exhaust was imaged by HAADF/STEM and then an EDX spectrum taken. Peaks for lead, bromine are prominent. Copper peak reflects the copper supporting grid as this peak is replaced with a nickel peak if nickel grids are employed.
