X-ray holograms at improved resolution: A study of zymogen granules

M. Howells*, C. Jacobsen, J. Kirz, R. Feder, K. McQuaid, S. Rothman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

84 Scopus citations

Abstract

X-ray holography offers the possibility of three-dimensional microscopy with resolution higher than that of the light microscope and with contrast based on x-ray edges. In principle, the method is especially advantageous for biological samples if x-rays in the wavelength region between the carbon and oxygen K edges are used. However, until now the achieved resolution has not exceeded that of the light microscope because of the poor coherence properties of the x-ray sources and the low resolution of the detectors that were available. With a recently developed x-ray source based on an undulator on an electron storage ring, and high resolution x-ray resist, a hologram has been recorded at about 400-angstrom resolution. The experiment utilized x-rays with wavelengths of 24.7 angstroms and required a 1-hour exposure of the pancreatic zymogen granules under study.

Original languageEnglish (US)
Pages (from-to)514-517
Number of pages4
JournalScience
Volume238
Issue number4826
DOIs
StatePublished - 1987

ASJC Scopus subject areas

  • General

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