Abstract
The technique of contact microscopy using soft X-rays is now established /1,2,3/ and enables a 1:1 image of the specimen to be formed in an X-ray sensitive resist which, after development, can be viewed by electron microscopy. The quality of the image so obtained depends on several things:- sensitivity of the resist; intimate contact of the specimen with the resist; exposure and development times; thickness/thinness of the sample. Because of the preferential absorption of X-rays by features within biological specimens, the degree of information gained will depend on the structural heterogeneity within the material. The technique also has the potential of imaging mineral deposits within a tissue, providing that the element has a high absorption cross section in the X-ray band used.
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Richards, K.S., Rush, A.D., Clarke, D.T., Myring, W.J. (1988). X-Ray Contact Microscopy, Using Synchrotron and Laser Sources, of Ultrasectioned, Heavy Metal Contaminated Earthworm Tissue. In: Sayre, D., Kirz, J., Howells, M., Rarback, H. (eds) X-Ray Microscopy II. Springer Series in Optical Sciences, vol 56. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-39246-0_61
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DOI: https://doi.org/10.1007/978-3-540-39246-0_61
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