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compensating filter |
Also found in: Dictionary/thesaurus, Financial, Encyclopedia, Wikipedia, Hutchinson | 0.07 sec. |
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compensating filter, a device, such as a wedge of aluminum, clay, or plastic, that is placed over a body area during radiography to compensate for differences in radiopacity. For example, a wedge may be placed over a foot with the thick portion over the toes and the thin edge toward the heel to compensate for the range of thickness of the foot. See also bowtie filter. filter, n a material placed in the useful beam to absorb preferentially the less energetic (less penetrating) radiations. See also filtration. filter, added, n a filter added to the inherent filter. filter, compensating, n a filter designed to shield less dense areas so that a more uniform image quality will be produced. filter, inherent, n the filtration introduced by the glass wall of the radiographic tube, any oil used for tube immersion, or any permanent tube enclosure in the path of useful beam. filter, orange, n the recommended safelight filter for darkroom illumination when processing intraoral film only. Also called filter type ML-2. filter, red, n the recommended safelight filter for darkroom illumination when processing either intraoral or extraoral film. Also called filter type GBX-2. filter, total, n the sum of inherent and added filters. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| ? Mentioned in | ? References in periodicals archive | |
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Each ExpoCap is constructed of a durable black aluminum ring mount securing compensating filters between the front and back white lens elements. Each ExpoCap is constructed of a durable black aluminum ring mount securing compensating filters between the front and back white lens elements. |
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