STEM and shadow-imaging of biomolecules at 6 eV beam energy

@inproceedings{Spence1997STEMAS,
  title={STEM and shadow-imaging of biomolecules at 6 eV beam energy},
  author={John C. H. Spence},
  year={1997}
}
Abstract The imaging of biomolecules in the lensless, field-emission, point-projection shadow-image electron microscope (PPM), operating between 2 and 100 eV, is reviewed. Radiation damage in this instrument is compared with X-ray and electron microscope imaging (or holography). Two regimes are considered for imaging at low voltage—one in which the inelastic mean free path λ I is much larger than the molecule, and one in which it is much shorter. A summary of measurements of λ I is given for… CONTINUE READING