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fan beam

   Also found in: Encyclopedia 0.01 sec.
fan beam,
a geometric pattern produced by collimating a spatially extended x-ray beam with a long, narrow slit. Also called fan x-ray beam.


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As the product is transported along the conveyor, it passes through the X-ray fan beam and absorbs some of the x-rays.
Abstract An analysis of the integral kernels for two well-known fan beam CT reconstruction algorithms has been performed.
In a typical application, a panoramic x-ray source that emits a fan beam of x-rays in an angle >180[degrees] is inserted inside of the tire under inspection and aligned with the internal collimator aperture opening.
 
 
 
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