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JMDMT #2538 Microfossils of Cyanobacteria in Carbonaceous Meteorites

The James M. DuPont Meteorite Collection - samples without image degradation due to the effects of buildup of negative charge. The instrument operating voltage is 10 kV to 30 kV and it is capable of magnifications from90Xto 100,000X. It is equipped with a 5-axis stage and a Noran Instruments Energy Dispersive Spectrometer that can detect light elements (Z%3E Boron). Hitachi S-4100 Field Emission Gun Scanning Electron Microscope (FESEM): This instrument uses a cold cathode field emission electron gun and operates at accelerating voltages from 0.5 keV to 30 keV. Operation at low voltages allows it to image uncoated meteorites and biological materials without the conductive coatings that are usually required to minimize

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