Method of phase-dispersion introscopy |
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Authors: | V N Ingal E A Belyaevskaya |
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Institution: | (1) X-Ray Laboratory TOO, 195272 St. Petersburg, Russia |
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Abstract: | A method is described for studying the internal structure of noncrystalline objects which are weak x-ray absorbers. The method
uses the conventional arrangement of plane-wave topography. The object to be investigated is immersed in a monochromatic pseudoplane
wave formed by a highly asymmetric reflection off a perfect crystal or several crystals and introduces phase disruptions at
the wave front. A perfect single crystal mounted behind the object in a Laue arrangement reveals these disturbances, forming
a contrast image of the boundaries of the structural components of the object. The possibilities of the method are illustrated
by photographs of objects of various natures. The features of the image contrasts are discussed and confirmed by experiments
on test objects.
Zh. Tekh. Fiz. 67, 68–77 (January 1997) |
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Keywords: | |
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