week 8 Filtration 22

week 8 Filtration 22 - X-ray Filtration When the x-ray beam...

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1 X-ray Filtration When the x-ray beam is produced, many energies of photons exist. Many are of such low energies that they will offer nothing to the production of the radiograph. Metals such as aluminum will absorb the soft low energy rays. This reduces the patient exposure.
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2 X-ray Filtration The leaded glass window of the tube acts as Inherent Filtration . Aluminum is attached to the mirror in the collimator. This is called Added Filtration .
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3 X-ray Filtration Total Filtration required by Federal and State Law is 2.5 mm of Aluminum equilivant for tube that operate at or above 70 kVp. This filtration hardens the beam
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4 Compensatory Filters Compensating Filters are used to equalize exposure when there is varying densities in the area being radiographed. Filters are placed in the less dense area
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5 Compensatory Filters The aluminum filter will block the collimator light but will let the x-ray pass through and a reduced level based upon the thickness of the filter.
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Compensatory Filters Filters will impact both the density and the contrast of the image due to the reduction of photons. Filtration decreases
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This note was uploaded on 01/03/2012 for the course LC 232 taught by Professor Wilson during the Fall '08 term at Palmer Chiropractic.

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week 8 Filtration 22 - X-ray Filtration When the x-ray beam...

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