Cynthia J. Zeissler

Learn More
137Cesium and other contaminants have leaked from single-shell storage tanks (SSTs) into coarse-textured, relatively unweathered unconsolidated sediments. Contaminated sediments were retrieved from beneath a leaky SST to investigate the distribution of adsorbed 137Cs+ across different sediment size fractions. All fractions contained mica (biotite,(More)
On the morning of July 16, 1945, the first atomic bomb was exploded in New Mexico on the White Sands Proving Ground. The device was a plutonium implosion device similar to the device that destroyed Nagasaki, Japan, on August 9 of that same year. Recently, with the enactment of US public law 111-140, the "Nuclear Forensics and Attribution Act," scientists in(More)
Quantum dots (QDs) of two different surface chemistries (carboxyl (COOH) and poly ethylene glycol (PEG) modified) were utilized to determine surface chemistry impacts on QD mobility and distribution in bacterial biofilms. Epifluorescent and Confocal Laser Scanning Microscopy (CLSM) were used to evaluate QD association with biofilm components (proteins,(More)
This work provides examples of some of the imaging capabilities of environmental scanning electron microscopy applied to easily charged samples relevant to particle analysis. Environmental SEM (also referred to as high pressure or low vacuum SEM) can address uncoated samples that are known to be difficult to image. Most of these specimens are difficult to(More)
A practical series of analytical and quality control procedures were developed and an evaluation of microprobe correction algorithms was made to provide a robust method to enable quantitative x-ray microanalysis to be performed at large, variable specimen tilt angles relative to the electron beam and x-ray detectors. The procedures and corrections explored(More)
  • 1