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collimator
(redirected from collimators)

   Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson 0.06 sec.
collimator (kol´imātur),
n a diaphragm or system of diaphragms made of an absorbent material and designed to define the dimensions and direction of a beam of radiation.

collimator
a device, sometimes a diaphragm, or series of diaphragms, which control the direction and the dimensions of the x-ray beam.

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The small angle scattering effect from this material was studied to obtain initial data for the design of precise collimators.
The idea of using such glass-fiber lenses or collimators to guide X-rays and neutrons originated with Muradin A.
Inveon features advanced multi-pinhole SPECT collimators for improved sensitivity and spatial resolution; groundbreaking new PET and SPECT acquisition and processing technology; and a unique PET transmission method for faster and more accurate attenuation correction.
 
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