Low-dose high-resolution electron microscopy of zeolite materials with a slow-scan CCD camera

Research output: Contribution to journalArticle

38 Scopus citations

Abstract

We demonstrate the application of a commercially available slow-scan CCD camera to low-dose high-resolution electron microscopy on zeolite materials. A resolution of 2 [Aring] has been successfully achieved for both Y-zeolite and ZSM-5. The slow-scan CCD camera offers two important advantages: (1) low readout noise which allows high-resolution images to be recorded with very low beam intensity; (2) digital storage of the CCD images which allows immediate evaluation of recorded image quality using on-line image-processing routines, making the image recording much more efficient. Image processing is essential for retrieving the high-resolution structure information that is often obscured by the noise in a low-dose image.

Original languageEnglish (US)
Pages (from-to)332-340
Number of pages9
JournalUltramicroscopy
Volume48
Issue number3
DOIs
StatePublished - Mar 1993

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Instrumentation

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