ISSN:
1349-9432
Keywords:
phase contrast
;
incoherent X-ray
;
edge effect
;
half-width of edge enhancement
;
Cu
;
Mo
;
W anodes X-ray tubes
;
refraction
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A method has been devised to calculate the half-width of the phase contrast enhanced edge of an X-ray- image with incoherent X-rays. This method is based on changes in the wave fronts of X-rays after penetrating an object, and it takes into account the blur due to penumbra observed in practical radiographic imaging. The method closely predicted edge enhancement when images of a plastic fiber were produced with practical X-ray tubes (Cu, Mo, and W anodes with focus-diameters of 10,100, and 40 μ, respectively). Thus, the method shows promise in facilitating phase contrast X-ray imaging in both medical radiography and non-destructive inspection using incoherent X-rays from X-ray tubes with substantial focus-sizes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s10043-000-0566-z
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