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Microradiography with an x‐ray image magnifier: Application to dental hard tissue
Author(s) -
Kuriyama Masao,
Dobbyn Ronald C.,
Takagi Shozo,
Chow Laurence C.
Publication year - 1987
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595976
Subject(s) - magnification , zoom lens , optics , image resolution , zoom , computer science , synchrotron radiation , computer vision , lens (geology) , artificial intelligence , physics , materials science
The superior spatial resolution obtained with parallel‐beam microradiography over conventional contact microradiography has allowed us to image microstructural features of dental hard tissue not previously reported. Our efforts to extend these techniques to provide a real‐time capability for viewing in situ demineralization and remineralization effects, at and below the 1‐μm level, have resulted in an instrument with several novel and unique features. Using a synchrotron radiation source of x rays and diffraction image magnification, we are now able to change magnification at will (x‐ray zoom lens). In addition, the energy range over which the instrument operates gives one considerable flexibility in optimizing image contrast. The techniques of parallel‐beam microradiography, and diffraction image magnification are applicable to problems in many other areas of science. Using examples within dental research, the uniqueness and versatility of these new techniques are discussed.